14 best first alert alarm systems

Product description

Promote greater household safety with the First Alert 9120B Hardwired Smoke Alarm with Battery Backup. This 120 volt AC smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast flaming fires and alerts you with a loud 85 decibel alarm. Designed to be wired directly into your home's electrical system, this hardwired smoke detector features a backup battery that helps keep the alarm functioning even in the event of a power outage. The gasket less mount helps ensure a perfect alignment for easy installation, while tamper resistant locking pins keep the alarm secure. And thanks to the convenient test/silence button, you can easily check whether the alarm is functioning properly and mute false alarms. This smoke alarm can integrate with up to 12 other First Alert or BRK hardwired alarms and features a latching indicator that identifies which unit triggered the alarm.

Introducing the revolutionary BRK 9120 series smoke alarms which have been redesigned from the ground up. They install faster, perform better, and are even smarter than before. All of these improvements help reduce nuisance alarms and save you time and money. BRK Electronics smoke alarms are designed to be easy to install, easy to maintain, and quality-engineered for years of virtually maintenance-free service.

The 9120B AC-powered smoke alarm with battery backup includes these features:

• Ionization sensor which helps detect fast flaming fires that consume combustible materials rapidly.
• 120-volt AC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm.
• Latching alarm indicator which automatically identifies which unit initiated the alarm.
• Smart technology to reduce nuisance alarms.
• 9-volt battery backup for peace of mind during power malfunction.
• Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality.
• Perfect mount system including a gasketless base for easy installation and new mounting bracket that keeps the alarm secure over a wide rotation range to allow for perfect alignment.
• Mounting bracket lock for tamper resistance.
• Dust cover to keep unit clean during construction.
• 10-year limited warranty.

All BRK Electronics smoke alarms meet UL 217 standard and are listed with the California State Fire Marshal. They use the new UL mandated repeating 85-decibel alarm horn pattern. 10-year limited warranty. This unit is approved for sale in Oregon after new revisions on law HB2586.--Bree Norlander

What's in the Box

One smoke alarm, one 9-volt battery, and user's manual

From the Manufacturer

The revolutionary BRK 9120 series smoke alarms have been redesigned from the ground up. They install faster, perform better, and are even smarter than before. All of these improvements help reduce nuisance alarms and save time and money. BRK Electronics’ smoke alarms are designed to be easy to install, easy to maintain, and quality-engineered for years of virtually maintenance-free service. The 9120B includes an ionization sensor which helps detect fast flaming fires that consume combustible materials rapidly and is 120-volt AC inter-connectable (with maximum 18 compatible devices), which lets the alarm be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters, and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm and a latching alarm indicator automatically identifies which unit initiated the alarm. This is smart technology to reduce nuisance alarms. It also has a 9-volt battery backup for peace of mind during power malfunction, a single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality, a perfect mount system, including a gasket less base for easy installation and new mounting bracket that keeps the alarm secure over a wide rotation range to allow for perfect alignment, and a mounting bracket lock for tamper resistance. A dust cover keeps the unit clean during construction. It comes with a 10-year limited warranty.

• Keep your family safe with this hardwired smoke alarm the battery backup means constant monitoring, even if there's a power failure
• Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• Can connect to other compatible BRK or first alert smoke detectors, to ensure all alarms will sound when smoke is detected
• Simple to use, with a single test/silence button, and side load battery compartment tamper resistant locking brackets and universal mounting brackets make installation easy
• Rigorously tested to meet UL standards120 volt AC power with 9V battery backup to keep alarm functioning during power outage
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
• Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

User questions & answers

Question:	My entire home is equipped with BRK smoke detector (4120 B) and Carbon Monox Det (CO50120B). They need replacing. Will new BRK fit extant casings
Answer:	Yes all the wired Nest Protect needs is the 120V hot (black) and neutral (white) wires in the electrical box connected to the plug-in pigtail that comes with the Protect. If your house has multiple detectors now you will usually also find a red wire in the electrical box that interconnects your old detectors so that if one goes off they all sound. That wire is no longer needed with the Protect so you just cap it with a wire nut.
Question:	can these be connected together so if one is set off they all go off
Answer:	Yes, but only if you are connected to the internet and then only for the last ten days, and only if the level rises above the heads up level (which is 70ppm and rising for around an hour or a shorter period if over 150ppm). To counter what someone else's answer was - Carbon monoxide does NOT sink. It is in fact lighter than air (CO has an atomic weight of 28 versus Nitrogen (N2) which is also 28 - but marginally heavier (by 0.003 amu due to heavier isotopes), Oxygen (O2) which is 32 and Argon which is 40. However the weight is similar enough in the air in your house that it tends to distribute as a fluid and is measurable anywhere in a room; it really depends upon how air moves through the space. The levels tend to fluctuate rapidly as CO distributes and any outside air mixes in and additional CO is added. Overall, there is no perfect way to measure the CO levels with one device in one place, but this is as good as most people need.
Question:	How does the Alarm Latch feature "easily identify initiating alarm"? This is major problem with false alarms on my existing Kidde/Firex dual alarms
Answer:	I just checked this for you. I unplugged my wifi router and started a test. All detectors alarmed as expected. So, yes, the system works even without active wifi.
Question:	Can a BRK Model 92120B smoke detector directly plug in and replace an old BRK Model 4120B smoke detector (without an adapter
Answer:	I think very few here understand the question. National code requires interconnected smoke detectors as of 2004, there is an extra wire in the circuit and all smoke detectors are on that wire for 'signal'. When one alarms they should ALL alarm. If I am reading the answers correctly, NEST does not comply with the signal wire. However, it looks like it does set up its own wireless network to act like they are all interconnected. To be honest, after paying for the extra wire behind the wall, why would I want to by 6-8 nests at $100 each when the originals are 20-30 each? This way there is one smart point to notify if any detector is going off. Nests way 6-9 smoke detectors, 6-8 login, 6-8 ip address. Ugh, what a nightmare!

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Product description

The First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location features an 85-decibel siren and voice alarm that tells you where the danger is located. A photoelectric sensor detects smoke while minimizing false alarms from cooking or shower steam. Interconnected smoke detectors in different locations are designed to work together, with one alarm triggering the other alarm during a fire, helping to provide the earliest warning for your family.

From the Manufacturer

In the event of a fire every second counts. If a fire were to begin in your basement and the alarm there sounded, you may not hear it right away if you're sound asleep two floors up. With traditional battery-operated alarms, you lose valuable time waiting for the smoke to rise to another alarm, on another level, before the alarm on your floor sounds. But with First Alert ONELINK alarms, if one detects danger, they all sound. This can alert you sooner, and it increases your chances of getting out safely. Until now, alarms that could signal each other were only available in homes with hardwired alarms requiring installation from an electrician. But First Alert ONELINK alarms communicate without wires. ONE Link-with Voice Location Smoke alarm is programmable with up to 11 locations in your home - when alarm sounds it will tell you the location of the smoke. The wireless feature allows multiple alarms to talk to each other - when one alarm sounds, they all sound. The wireless network operates on 914 MHZ 3 channels and will not interfere with other electronics. The ONELINK smoke alarms uses photoelectric sensing technology which is environmentally friendlier and which reduces nuisance alarms, making it ideal for cooking areas. It is also great for sensing slow smoldering fires quickly. A low battery signal alerts you to replace the battery. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The AA batteries are easy to install in the convenient pullout battery drawer. Two AA batteries included.

• Help keep your family safe with these battery operated smoke alarms that wirelessly interconnect with each other and other First Alert enabled alarms so that all sound when one is activated, creating a home safety network; comes in a pack of 2 alarms
• Voice alarm with 11 programmable locations tells you where the danger is so you can choose the best evacuation route; Loud, 85-decibel siren sounds to alert you to danger
• Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; Helps minimize the number of false alarms
• Battery powered alarm requires no rewiring for installation and provides continued monitoring even if there's a power failure; use with Polaroid AA batteries for best results
• Wirelessly connect upto 18 first alert enabled alarms for the maximum in whole home protection; includes test/silence button, low battery warning, end of life timer
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

User questions & answers

Question:	is the wireless signal constant or only during an alarm
Answer:	No, they are battery operated. The 9 volt batteries are included with the alarms.
Question:	Can i pair these smoke detectors with the co/smoke detectors of the same brand (firstalert). i don't need everywhere co detectors which cost more
Answer:	No, they are battery operated. The 9 volt batteries are included with the alarms.
Question:	What is the max distance the units can be apart and still communicate with each other
Answer:	I bought one in 2012. I have changed the batteries once, about five years ago. Thought it was due for a change now but it has reached the end of its ten-year "life" after seven years. To be fair, the sticker indicates it was manufactured in April of 2010, so it was on a shelf for two years, making it nine years old.
Question:	If i buy three of these double packs will they all connect
Answer:	I’m using these to replace the wired units from the same manufacturer. They fit the same mount. Two units never worked right, and a third less than seven years old just stopped working. I don’t know if they were wired properly or not to begin with, so I’m going with these ones.

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Product description

The First Alert SCO500B Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo Alarm with Voice and Location detects smoke and elevated carbon monoxide levels and can work with compatible models to create a wireless alert system throughout your home (additional alarms sold separately). For those who want a comprehensive detection system without hiring an electrician or worrying about hardwiring, this battery operated CO smoke detector combo is an ideal solution. Wireless technology connects the detector with other compatible First Alert wireless enabled alarms in your home to create a wireless safety network. Up to 16 compatible alarms can communicate with each other and alert you when there is a problem across the house even in a different room or on a different floor. The photoelectric smoke sensor is designed to reduce false alarms from cooking smoke or shower steam while remaining sensitive to real danger. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, including faulty fuel burning appliances. A loud 85 decibel siren is designed to wake event he soundest sleepers, and a voice alarm indicates where and what the threat is.

• Battery operated smoke and carbon monoxide alarm can be installed easily
• Wireless interconnect uses radio frequency communication to connect the alarms, without any electrical wiring needed.
• Connects multiple alarms together for wireless safety network (not z-wave compatible)
• When your alarms are interconnected, they communicate with each other, forming an integrated system of protection for your home
• When one alarm sounds, all alarms will sound
• Voice alarm gives clear indication of what the danger is and where it is located

User questions & answers

Question:	Is there a way to get the power supply to also hardwire these
Answer:	I suppose the battery life would depend upon how often it is used. I open my safe rarely but some might do it daily, thus affecting battery life. On the outside of the lock, there is a rubber-covered set of contact to which a 9-volt battery can be applied. This will allow the mechanism to be activated should the internal batteries be depleted. The key, by the way, is used as an additional lock but is optional. The electronic lock must be used. The key cannot be substituted instead of the electronic lock. The electonic lock is always in effect. The key is additional locking and if locked, the electronic lock alone will not open the safe.
Question:	Works on 220v
Answer:	Metal.... great safe, holds a lot - we purchased another tray for small iteams and it did not hinder the space at all...
Question:	Why does it say in the Technical Information that batteries are not required
Answer:	Yes, I too found the safe puzzling to open.
Question:	I do not see onelink anywhere on the unit. will this link with my older first alert onelink units
Answer:	My recollection is that the factory code is unique per safe. I'd suggest contacting the company. They may be able to help.

Product description

The First Alert BRK 7010B hardwire photoelectric smoke alarm with battery backup is a hardwire 120V single or multiple station smoke alarm designed for residential home use and institutional locations such as hospitals, hotels, motels, dormitories and other multiple family dwellings. This alarm is inter-connectable and can be installed and linked with up to 18 compatible devices (up to 12 smoke alarms and 6 compatible devices like bells, horns and repeaters) so that when one triggers, all alarms sound. The First Alert BRK 7010B emits loud 85dB audible alarm. The alarm also features a photoelectric smoke sensor, which is particularly effective at detecting slow smoldering fires. The Frist Alert BRK 7010B hardwire smoke alarm with battery backup is packed with convenient features. The single test/silence button silences a non-threatening alarm or low battery warning; plus allows you to test the unit's functionality quickly. The latching alarm indicator will automatically identify which unit initiated the alarm if alarms are installed in a series – helping identify the initial location and source of an incident. The smoke detector also includes an optional drawer and mounting bracket lock to prevent tampering or removal of the 9-volt battery. End of life signal provides audible notice when the alarm needs to be replaced after 10 years of service. This alarm is backed by a 10 year limited warranty and is tested to meet UL standards 217. Includes smoke alarm, mounting bracket, 9-volt backup battery and user manual.

The BRK hardwire smoke alarm with photoelectric sensor is designed to reduce common "nuisance" alarms. It's an excellent choice for installations in or near kitchens, near fireplaces, or in hallways directly outside bathrooms, utility rooms, or other areas prone to steam. This alarm is also a popular choice for hotel/motel applications.

The 7010B AC-powered smoke alarm with photoelectric sensor includes these features:

• Photoelectric sensor which is more effective at detecting smoldering fires which smolder for hours before bursting into flame.
• 120-volt VAC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm.
• Quick plug-in power connector for easy installation.
• 9-volt battery backup for peace of mind during power malfunction.
• Alarm indication which in an interconnected system, automatically identifies which unit initiated the alarm.
• Optipath 360 technology allows 360-degree access to the layer of air on the ceiling or wall that carries the fire signatures (smoke, combustion particles and volatile components).
• Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality.
• Locking feature for tamper resistance.
• 10-year limited warranty.

All BRK Electronics smoke alarms meet UL 217 standard and are listed with the California State Fire Marshal. They use the new UL mandated repeating 85-decibel alarm horn pattern. 10-year limited warranty.--Bree Norlander

What's in the Box

One smoke alarm, one 9-volt battery, and user's manual

• 120 volt hardwire smoke alarm with photoelectric sensor and battery backup
• Features convenient 9 volt battery backup, silence/test button, dust cover, 85 decibel alarm
• Inter connectable with BRK and first alert hardwired smoke and carbon monoxide alarms
• Intuitive latching alarm indicator identifies which unit triggered alarm. Backed by 10 year limited warranty and tested to meet UL 217 standards
• 85 decibel alarm
• Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

User questions & answers

Question:	In two places, the description says this unit is red plastic. Is this true
Answer:	They are white with a red plastic dust cover. The red plastic dust cover is for use when you are painting or remodeling to prevent particulates from entering alarm and setting it off.
Question:	The photo for this product indicates that this is a dual alarm (both p and i are shown on front of unit). Just supposed to be just photoelectric
Answer:	Yep, they are showing the wrong picture. This is a photoelectric model only. The dual ion/photoelectric hardwire detector is BRK 3120B. I realize your question is old....I'm answering it for others...
Question:	I have 20 year old First Alert alarms with incompatible wiring. Does this unit come with a new wiring harness to connect to the AC line
Answer:	Yes, this comes with a 3 wire harness that gets hard wired to your existing electrical and connects to the back of the fire alarm. Black and white for power and red to link alarms together. It does not include any adapters so you will need to disconnect the power and replace the existing harness with the one included with the alarm.
Question:	on the back there should be a number like +/- obs ft % or a sensitivity range could you please read the numbers form me please thank you
Answer:	SMOKE SENSITIVITY: 1.18 to 2.83 %/FT. OBS.

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Product description

The easy-to-install, wireless, battery-powered First Alert Z-Wave Smoke & Carbon Monoxide Detector Alarm helps protect your home and family from potential dangers. It is designed for improved compatibility with the Ring Alarm Security System and other certified Z-Wave systems, so you can be kept informed through mobile alerts in the event of an emergency. The Z-Wave Plus Smart Start feature provides a faster and more intuitive connection of the device to the hub and on-boarding via use of QR code scan located on device The 2-in-1 detector includes a photoelectric smoke-sensing chamber, electrochemical carbon monoxide sensor, 85-decibel horn, tamper-resistant battery door, and single test/silence button. It is specifically designed for residential and institutional applications such as sleeping areas in hospitals, hotels, dorms, and multifamily dwellings defined in standard NFPA 101. Fully tested, it complies with UL217, UL2034, CSFM, NFPA 720, NFPA 101, and other standards modeled on those agencies. This combination alarm also meets building codes that require a battery-operated Z-Wave wireless smoke and carbon monoxide detector, as well as ICC codes. You need a Z-Wave Plus gateway hub to receive mobile alerts. Please consult the manufacturer of your Z-Wave hub to make sure it supports this First Alert detector.

• Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries
• This device is certified to work with Ring; Enjoy improved compatibility, easier setup and a seamless in-app experience
• Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected
• The Z-Wave Plus with Smart Start feature allows a faster and more intuitive connection of device to hub and on-boarding via QR code scan located on device
• Certified to work with smart home systems such as Ring Alarm, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub (sold separately; Not compatible with Wink or Onelink)
• Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam
• Includes an 85-decibel horn, single test/silence button, side access to a tamper-resistant battery door, and pins that lock the alarm to the mounting bracket

User questions & answers

Question:	If there is a false alarm, can I turn this off from my i-phone
Answer:	I open back back forgot I had installed alarm, I have a keypad by back door. When alarm sounded true keypad, nothing. I ran to unplug. Duh, battery operated then run to phone. Phone stopped everything. I didn't even get a call. That happened December 30 2018.
Question:	How long does the battery last
Answer:	At first my batteries were reporting 85% after 6 months, and again about 85% after the second 6 months. Then I helped my neighbor in the condo next to me setup a zwave system. Suddenly my batteries are only lasting 4-6 weeks. In other words, your signal strength will have a lot to do with how long the batteries last.
Question:	Will this, if wired to an existing system, trigger a notification if a non-z-wave Alarm goes off (can I buy just one or do I need to replace all
Answer:	I don't think this can be wired to an existing system? It doesn't have the receptacles on the back like the wired units do. So, as far as I can tell, you'd have to replace them all. As an aside, I left my wired system in place (4 detectors) and just installed 2 of these. I figured if we're home the wired system will alert us inside the house. If we aren't home the zwave alarms will trigger eventually, but potentially not as quick (depending on source of smoke) without the same number of detectors.
Question:	are they hard wire? (120v with battery backup) and do they have an interconnect wire
Answer:	No, thus they are not code compliant in most jurisdictions since interconnect is often required.

Product description

Featuring a slim, space-saving design, this First Alert battery-operated photoelectric smoke alarm uses an ultra-reliable photoelectric sensor to detect smoke from slow-burning, smoldering fires, and a patented smoke entry system with a direct path to the sensor for more reliable detection. This smoke alarm also features an escape light that can help you find your way in a power outage or other emergency. The lithium-ion battery provides continuous power for up to a decade, and the alarm requires no hardwiring for installation. The simple twist-lock mounting system installs easily onto a wall or ceiling, while the tamper-resistant locks help prevent removal of the battery to keep the alarm secure. A loud 85-decibel alarm sounds when smoke is detected, and a convenient test/silence button lets you easily check alarm function and mute false alarms.

• Help keep your family safe with this battery-operated First Alert smoke alarm; the 10-year lithium-ion battery offers continuous power for the life of the alarm, and allows for monitoring even if there's a power failure
• Smoke alarm has a built-in escape light feature that helps guide your way in a power failure or other emergency
• Slim shape is half as thick as a standard smoke alarm; features easy twist-lock mounting system and tamper-resistant design
• Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms
• Patented smoke entry system allows for a direct path to the sensor
• Features loud 85-decibel alarm and single test/silence button
• Meets UL217 standards and complies with legislative requirements for 10-year battery operated smoke alarms
• Powered by sealed, 10-year lithium-ion batteries to provide continuous protection for ten years without battery replacement

User questions & answers

Question:	is first alert p1210e compatible with p
Answer:

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Product description

Featuring a low-profile, contemporary design, the First Alert PR710 Slim Photoelectric Smoke Alarm with 10-Year Battery provides the same protection as a standard smoke alarm while taking up only a fraction of the space. This slim, battery-operated smoke alarm requires no hardwiring for installation, making it an ideal solution for those who want to enhance fire safety without hiring an electrician. It features a built-in 10-year lithium-ion battery that provides continuous power for up to a decade. Equipped with an ultra-reliable photoelectric sensor, the smoke alarm detects smoke from slow-burning, smoldering fires while keeping false alarms to a minimum. A patented smoke entry system further enhances the detector's reliability by providing a direct path to the smoke sensor. The simple twist-lock mounting system installs easily onto a wall or ceiling, while the tamper-resistant locks help prevent removal of the battery to keep the alarm secure. Half as thick as a standard alarm, the smoke detector has a sleek, slim design that blends in seamlessly with most decor. A loud 85-decibel alarm sounds when smoke is detected, and a convenient test/silence button lets you easily check alarm function and mute false alarms.

• Complies with all current 10-year legislation in U.S. states/cities where required
• Slim shape is half as thick as a standard smoke alarm; easy twist-lock mounting system and tamper-resistant design
• Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms
• Patented smoke entry system allows for a direct path to the sensor
• Features loud 85-decibel alarm and single test/silence button
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
• Powered by sealed, ten year lithium batteries to provide continuous protection for ten years without battery replacement

User questions & answers

Question:	Why does my smoke detectors keep giving false alarms
Answer:	There are screw holes in the back if you use magnet someone could just take it.it is a great lock box.
Question:	is this detector the same or a newer version of model no. p
Answer:	Yes, it work on the door handles which both ends of the handle are attached to the door.
Question:	is this a hardwired unit with the 10 year battery backup or does the power come soley from the battery, with no hardwiring at all
Answer:	No, it doesn't rust over time.
Question:	Is it wireless
Answer:	US Company and made in China.

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Product description

Battery powered smoke alarm with mute feature silences nuisance alarms from cooking smoke or shower steam. Single button also tests alarm functions. Easy access battery drawer: No need to remove alarm from ceiling to change battery. 10-year limited warranty. Meets UL standards. Optional theft-prevention lock when activated, batteries and/or alarm cannot be removed without proper tools.

Working smoke alarms cut the risk of dying in a home fire by 50%, and that's important because a home fire starts every 83 seconds! The faster you know about a fire, the faster you can start moving your family outside. The First Alert smoke alarm with silence button allows you to both silence a non-threatening alarm and to test the unit's functionality. It features a low battery alert to remind you when to change the battery and has a missing battery guard to ensure that a battery is placed inside the alarm. The side battery drawer slides open for easy battery replacement. A blinking power indicator on the unit confirms that it is receiving power. The alarm contains an optional pin to lock the battery and unit in place for tamper resistance. It can be mounted on either the ceiling or the wall and can be used in mobile homes and RVs. It includes one 9-volt battery and has a 10-year limited warranty. UL listed for safety.Bree Norlander: what's in the Box: One smoke alarm, user's manual, and one 9-volt battery

From the Manufacturer

Working smoke alarms cut the risk of dying in a home fire by 50%, and that's important because a home fire starts every 83 seconds! The faster you know about a fire, the faster you can start moving your family outside. The First Alert smoke alarm with silence button allows you to both silence a non-threatening alarm and to test the unit's functionality. It features a low battery alert to remind you when to change the battery and has a missing battery guard to ensure that a battery is placed inside the alarm. The side battery drawer slides open for easy battery replacement. A blinking power indicator on the unit confirms that it is receiving power. The alarm contains an optional pin to lock the battery and unit in place for tamper resistance. It can be mounted on either the ceiling or the wall and can be used in mobile homes and RVs. UL listed for safety

• Help keep your family safe with this battery powered smoke alarm featuring an ionization sensor for smoke detection; a loud 85 decibel alarm sounds when smoke levels are elevated
• Ionization sensor is effective in recognizing smoke from flaming fires such as paper and grease fires
• Battery operated alarm unit provides continuous monitoring even if there's a power failure; Plus, it's easy to install
• Tamper resistant alarm also features a single test/silence button, side battery door, and missing battery guard
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• It can ship within the US except New York
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

User questions & answers

Question:	What is the dimension of the outside ring? I'm replacing old ones and want to cover the spot where the old one is
Answer:	there is no recall on this unit.
Question:	Does this alarm warn for carbon monoxide too
Answer:	That really depends on the battery. However it is recommended by the manufacturer and fire departments to change the battery on any smoke detector once a year.
Question:	I recently purchased three of these smoke alarms from Amazon. Can you tell me how high
Answer:	CA SB745 "SEC. 21. Section 13114 of the Health and Safety Code is amended to read: 13114. (a) The State Fire Marshal, with the advice of the State Board of Fire Services, shall adopt regulations and standards as he or she may determine to be necessary to control the quality and installation of fire alarm systems and fire alarm devices marketed, distributed, offered for sale, or sold in this state. (b) (1) No person shall market, distribute, offer for sale, or sell any fire alarm system or fire alarm device in this state unless the system or device has been approved and listed by the State Fire Marshal. (2) (A) Except as provided in subparagraph (B), commencing July 1, 2014, in order to be approved and listed by the State Fire Marshal, a smoke alarm that is only operated by a battery shall contain a nonreplaceable, nonremovable battery that is capable of powering the smoke alarm for at least 10 years. (B) This paragraph shall not apply to smoke alarms that have been ordered by, or are in the inventory of, an owner, managing agent, contractor, wholesaler, or retailer on or before July 1, 2014, until July 1, 2015. (3) Commencing January 1, 2015, in order to be approved and listed by the State Fire Marshal, a smoke alarm shall display the date of manufacture on the device, provide a place on the device where the date of installation can be written, and incorporate a hush feature. (4) The State Fire Marshal shall have the authority to create exceptions to paragraphs (2) and (3) through its regulatory process. The exceptions that may be considered as part of the regulatory process shall include, but are not limited to, fire alarm systems with smoke detectors, fire alarm devices that connect to a panel, or other devices that use a low-power radio frequency wireless communication signal. (5) The State Fire Marshal shall approve the manufacturer’s instructions for each smoke alarm and shall ensure that the instructions are consistent with current building standard requirements for the location and placement of smoke alarms."
Question:	Is this detector a photoelectric or ionization type
Answer:	Yes

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Product description

The First Alert PC900V Combination Smoke and Carbon Monoxide Alarm provides maximum protection and has a new sleek, slimmer design, which adds an element of style to safety. The PC900V has a modern, thin square design that's less than an inch thick (half the size of a standard alarm), while still providing all the protection you need to keep what matters most safe and secure. The PC900V is unique because it features alarm systems that work independently to detect both evidence of fire and carbon monoxide (CO) through the electrochemical carbon monoxide sensor and patented smoke entry system that allows a direct smoke path to the photoelectric sensor to detect regular and slow, smoldering fires. The combination of the smoke and CO (carbon monoxide) sensor and First Alert's Nuisance Free Technology will reduce false alarms that result from cooking and shower steam. This combination alarm includes power LED and alarm indicator, end of life signal and mute and single test/silence button so you can test your alarm regularly. Studies have shown that children respond quicker to a voice alerting them to danger rather than a beeping horn. The voice and location alert feature ensures residents are aware of the smoke or CO danger and provides the room location of where it was detected so you can plan your best escape route. Installation is simple with the versatile wall and ceiling mount and the easy slide in mounting bracket. This alarm has a white finish and is powered by "AA" batteries (included). First Alert Maximum Protection Alarms are the newest tech creation to provide a modern safety solution in the fire safety industry. The First Alert PC900V Combination Smoke and Carbon Monoxide Alarm comes with a 10 year limited warranty that protects against defects in material and workmanship. Dual smoke & co sensing, Ultimate protection from two deadly dangers.

The First Alert SC07CN Combination Talking Smoke Alarm and Carbon Monoxide Detector helps protect you and your family from two deadly threats: fire and carbon monoxide. This battery-operated unit includes a voice alarm that tells you the location of dangerous smoke or carbon monoxide in your home.

SC07 Combination Talking Smoke Alarm and Carbon Monoxide Detector At a Glance: Dual alarm detects both smoke and carbon monoxide Combines an audible verbal warning with loud alarm and flashing LED Uses an electrochemical carbon monoxide detector--the most accurate sensor available Photoelectric sensing technology reduces false alarms

WHERE TO PLACE SAFETY PRODUCTS: Smoke Alarms: 1 in every bedroom and at least 1 on every level of the home. Carbon Monoxide Alarms: 1 on every level of the home and 1 in each sleeping area. Fire Extinguishers: 1 on every level of the home and 1 each in the kitchen and garage.

2 systems work independently to detect both fire and carbon monoxide View larger.

Where does carbon monoxide come from?

Two-in-One Alarm System Protects Your Family

The SC07CN is unique because it features two alarm systems that work independently to detect both evidence of fire and carbon monoxide (CO). Easily programmable, this device features separate audible and visible signals that indicate dangerous levels of smoke or CO.

For example, if a high level of CO is detected in your kitchen, you'll hear a clear message saying, "Warning: evacuate. Carbon monoxide in kitchen. Evacuate." You'll also hear a loud, 85-decibel alarm and see a flashing red LED that clearly indicates the nature of the threat. Together, these audible and visible signals let you know precisely where the danger is, so you can plan the safest possible escape route. This extra level of protection is something a standard alarm simply can't provide.

Powered by two 'AA' batteries (included), this alarm uses an electrochemical carbon monoxide sensor--the most accurate CO sensor available. It also uses photoelectric sensing technology, which provides optimal protection from smoldering fires and reduces false alarms like those caused by cooking smoke and shower steam. The SC07CN even stores CO readings and verbally communicates the highest level of CO detected, so you can easily discern patterns that indicate it's time to check your appliances or other combustible items for CO leaks.

For convenience, most household remote controls are compatible with this system, meaning you can quickly test or silence the alarm. Additionally, an alarm mute button silences unnecessary alarms and allows you to test alarm function. There's also a low-battery warning that indicates waning power--a low-battery mute quiets the low-battery signal for up to eight hours. Finally, an end-of-life alarm that tells you when it's time to replace the unit, and a side-access drawer makes for easy battery changes.This alarm comes with a five-year warranty.

Carbon Monoxide: The Leading Cause of Accidental Deaths in the U.S.

Carbon monoxide, an invisible, odorless gas, is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until it's too late. Because you can't see, taste, or smell it, CO can kill you before you even know it's there. Likewise, exposure to low levels over time can make you ill.

The Consumer Product Safety Commission recommends that every home have at least one carbon monoxide alarm with an audible warning signal--like the SC07CN--installed near sleeping areas. An alarm like the SC07CN can detect the CO you can't see, smell, or taste before it causes any physical harm to you or your family.

Smoke Alarms Offer the Best Chance of Escaping Deadly Fires

Fire is a deadly threat to every household; it can strike anywhere, any time. The frightening truth is that in 2005, there were nearly 381,000 home fires in the U.S., resulting in over 16,000 casualties. Because of the very real threat of fire, it is vital that every household uses tools for fire protection. Smoke alarms like the SC07CN are the easiest, most cost-effective way to keep your family safe from fire. The more smoke alarms you have installed in your home, the more your safety increases.

What's in the Box

Combination carbon-monoxide and smoke alarm, two 'AA' batteries, and user's manual.

From the Manufacturer

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until it's too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air. One convenient alarm helps protect against two deadly household threats. Includes a voice alarm with location, when programmed, voice tells you location of unit if smoke or carbon monoxide is detected.

• Keep your family safe with this talking battery operated smoke and carbon monoxide alarm; it's equipped with voice and location, so you are alerted of the danger and where it originates from across your house
• Tells you whether the danger is smoke or carbon monoxide and where the threat is among up to 11 preprogrammed locations in your home
• Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire
• Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection
• Simple to use, with a single test/silence button, and EZ access battery drawer allows you to change batteries without removing alarm from the ceiling
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert brand trust survey in February 2018)
• It can ship within the US except New York

User questions & answers

Question:	Does first alert call my home
Answer:	Can
Question:	Does this have to be mounted, or can it operate as a portable detector
Answer:	I have 12 of these with bent screws or cracked levers. If you drop your hose they will eventually break and I am trying to find the parts too!
Question:	how loud is the voice
Answer:	It just looks like the design of the valve is different.
Question:	Can the voice part not be used (says programmable)? alarm/beep only
Answer:	yes they do, all shut off valve have a male and female end same one you for your hose, and they make Y's so you could hook up 2 hoses at the same time.

Product description

The First Alert CO615 dual power carbon monoxide plug in alarm alerts you to dangerous carbon monoxide. This carbon monoxide detector operates on a dual power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you at a glance what the carbon monoxide and power Levels Are. The Co monitor also features a convenient test and silence button and an end of life timer that lets you know when it is time to replace the unit.*ensure the outlet has power.*the battery is for back up only and is not intended to power the alarm for an Extended period of time in the absence of AC. *the alarm will light up the display briefly to indicate the unit is receiving power. *press and hold test button to ensure activation.

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air.

The First Alert CO615 carbon monoxide alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. Installation is as simple as plugging it in to any wall outlet. Its easy-to-read backlit digital LED display gives you a clear read-out of current CO concentrations in parts per million. The alarm includes a battery back-up giving you peace of mind in a power outage. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The unit monitors and re-alarms if carbon monoxide levels persist sounding a loud 85-decibel horn. An audible and visual low battery signal alerts you to replace the battery and an indicator alerts you when a battery has been removed. An end-of-life alarm of three chirps alerts you to replace the unit. Two AA batteries are included. 7-year limited warranty. UL listed. --Bree Norlander

What's in the Box

One carbon monoxide alarm, two AA batteries, and user's manual

• Keep your family safe with this digital display, plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure
• Features an advanced electrochemical carbon monoxide sensor; Peak level feature displays the highest concentration of carbon monoxide measured
• A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
• All first alert CO alarms are rigorously tested to meet UL standards
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

User questions & answers

Question:	What size home would this cover? Do I need more than one in a 1400 sq. ft. space
Answer:	Straight into the wall... two prongs on the back. The rear picture shown on Amazon shows the prongs, but it's a little confusing because the battery door is shown open - when the door is shut, it's out of the way so the unit can mount directly on an an electoral socket.
Question:	Does this alarm work when using an extension cord or must it be plugged directly into a wall outlet
Answer:	The manual for the CO605 plug-in with battery backup says that if the battery is low or missing, it chirps once a minute. I don't have the item myself, so if somebody can confirm that it does chirp if it is plugged in without a battery, I would appreciate it. As to another answer here, if you are hearing 3 chirps per minute, it means the alarm is not functioning properly; it is not because of a low or missing battery, which is supposed to give off only one chirp per minute.
Question:	can it detect levels of 20,30 or 40 ppm of CO? I know alot can only detect 70 ppm of CO or above...but I'm concerned of a small CO leak of below
Answer:	If it is a 9 volt battery, it may not be seated correctly. See the video on the first alert website, and be prepared to do some hard pushing to get the 9V battery to engage. I had 3 9V units, and 2 of the 3 seemingly required excessive pressure to get the batteries to engage. When I first thought I had the batteries installed by just closing the door, the unit chirped until I got the batteries shoved on hard.
Question:	If I plug this directly into the wall does it over both outlets? I have a nightlight in my hall where I want to place this unit
Answer:	CO is slightly lighter than air, but about the same weight as Nitrogen molecules that is 78% of air. It mixes evenly over time. Researchers tested this by injecting CO into a column of air at different heights. All trials mixed evenly but the injection at the top took a little longer to reach equilibrium. Therefore, it's more important to put the detector near where the likely source might be or near where people might be sleeping than a particular height. https://www.ncbi.nlm.nih.gov/m/pubmed/21536403/

Product description

This First Alert hardwired smoke alarm and carbon monoxide detector features an ionization smoke sensing chamber and an electrochemical carbon monoxide sensor. Installation and connection to AC power is easy with the included adapter plugs and "quick-connect" wiring harness so you can you easily replace existing hardwired alarms without needing to rewire. The 10-year battery backup allows for continued monitoring for the life of the alarm. Intelligent sensing technology is designed to reduce nuisance alarms; one button silences them if they do occur, and also tests detector functions. The latching alarm indicator automatically identifies which unit initiated the alarm, even after the conditions that set it off have subsided. And an end-of-life signal enhances your safety by letting you know when it's time to replace the unit. Connect it to compatible BRK or First Alert alarms within a single-family residence; connecting will sound all the alarms together.

• Convenient adapter plugs makes it easy to replace existing hardwired alarms without needing to rewire
• Keep your family safe with this hardwired First Alert smoke and carbon monoxide alarm with a 10-year battery backup, which means constant monitoring for the life of the alarm, even if there's a power failure
• Combination smoke alarm and carbon monoxide detector features electrochemical carbon monoxide sensing technology, as well as intelligent smoke sensing technology to reduce nuisance alarms
• Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
• Simple to use, with a single test/silence button; includes 10-year lithium battery with a locked drawer to prevent tampering
• 10-year limited warranty; equipped with end-of-life signal, so you know when it's time to replace the unit for your safety
• Rigorously tested to meet UL standards
• To ensure complete protection make sure to place one carbon monoxide detector on each level of your home and in each bedroom

User questions & answers

Question:	I have one of these in my rental (studio) and I hear chirping about every 50 seconds and I think it is just a cricket. Or is it this detector
Answer:	my husband is on the short side in height but broad through the chest, therefore, he wanted a large size. So for the length there is no issue of them being too short.
Question:	Can it be connected to first alert zcombo 2-in-1 smoke detector & carbon monoxide alarm, z-wave combo
Answer:	yes. fit very well. and i love the buttons at bottom. keeps from dragging in water and mud
Question:	Can it replace hardwired brk sc7010bv
Answer:	I have a 46" chest, 33" waist, and 36" inseam. I ordered a large and I like the way it fits.
Question:	Okay to run on battery power only? Or are they somehow different than battery-only versions
Answer:	I'm 34 waist, 5'11. I prefer the large because they are easier to put on/take off. I normally wear jeans and heavy shirt underneath so if day warms up I just remove the coveralls and continue working. The large loose fit makes it easier to work in than a restrictive snug fit.

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Product description

First Alert ADF-12 BRK/Firex Smoke Alarm Adapter Plugs take the hassle out of replacing 120-volt hardwired Firex smoke alarms that are outdated or expired. Ideal for retrofitting, these convenient smoke alarm adapter plugs eliminate the need for rewiring when replacing an existing Firex detector with a BRK or First Alert alarm. Simply insert the three-pin male connector into your existing Firex ceiling plug, insert the female connector into your First Alert or BRK smoke alarm, and secure the smoke alarm into place. Compatible with a wide range of hardwired First Alert, BRK, and Firex smoke alarms, these adapter plugs can help you save time and installation costs when you're updating the fire safety system of your home or facility. The package includes 12 adapters--enough to install 12 smoke detectors.Convenient adapter plug saves time and installation costs when retrofitting existing homes or apartments

• Easily replace hardwired Firex smoke alarms with First Alert or BRK smoke alarms
• Ideal for retrofitting jobs
• Compatible with SC9120B, 4120-series, 9120-series, 7010-series, 5919, 2002RAC, SC6120B, HD6135FB, and RM3 First Alert or BRK alarms
• Compatible with 406 (G-6), 4518 (ADC), 4618 (FADC), 484 (PG-40), 4480 (PAD), 5700 (ADH), and 499 Firex alarms
• Includes 12 smoke alarm adapter plugs.Refer to the PDF attached below in Technical Specification for User Manual for compatible models and brands
• Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

User questions & answers

Question:	will this adapter work with the firex
Answer:	New
Question:	Was planning on using these adapters to replace older (1999 or so) firex fx 1218 units but not correct. i'm i stuck having to re-wire each unit
Answer:	Yea that size should fit fine. I’m 36x32 jeans and bought a 44x34 and they are quite large and long on me. They are definitely for cold weather. Very warm even without extra layers.
Question:	Is there anyway to get only 3 of these adaptors since they weren’t included with my first alert alarm purchase. I need three pin close in a line
Answer:	i wear same waist and 32 jeans i would recommend the 42 or 44 waist depending upon how close you are to 38 or 40 if your closer to 40 and want to wear them so the waist is not snug go with 44 waist if your length is closer to 30 or 31 stay with the 30 length. they are not short could be a little long hope this helps! i am 6' 235lbs before exterior clothing and teh 32 is plenty long almost too long
Question:	Are there 2 adapters for two smoke detectors or is this one adapter for one smoke detector
Answer:	Yes they are lined and heavy. You need the unlined.

Product features

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

• Keep your family safe with this easy to use, battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
• Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room.The alarm sequence should last 5-6 seconds. If it does not alarm, make sure fresh batteries are correctly installed, and test it again. If the unit still does not alarm, replace it immediately
• A loud 85 decibel alarm sounds when CO levels reach dangerous levels
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet
• Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
• A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels
• To ensure complete protection make sure to place 1 on each level of your home and in each bedroom

User questions & answers

Question:	what is the end-of-life timer ? I can't find what the alram for that is. Does it chirp twice in 30 seconds like others
Answer:	No. These boots are not waterproof.
Question:	the package picture shows 9-volt, but sounds like it is a crapshoot on what they will send you. which is better and lasts longer, 2AA or 1 9V? I hate taking out and putting in 9v batteries. so many to choose from. would prefer plug-in but would be too low
Answer:	Hello! the material is pretty resistant! good for harsh weather but I suggest you try them first and see!! I ordered them through Amazon wardrobe so that I could try them first and decide. Hope it helps.
Question:	Why can't this be purchased in or shipped to California
Answer:	2 hooks for laces
Question:	Has anyone else received the CO400 with one 9 volt battery instead of the two AA batteries listed in description and on picture of packaging display
Answer:	Yes, depending on the socks you wear. I ride a motorcycle and wore them in a hail storm in Colorado on the bike. My feet stayed warm and dry.

Product description

2 Pack of First alarm ATOM Smaoke and Fire alarm.

• Advance smoke entry system
• Easy to install
• No Battery Replacement needed
• Photoelectric System - Fewer false alarms
• Long life - 10 years

User questions & answers

Question:	Model number
Answer:	Bought this after I twisted my ankle and fell on the wet pavement a month earlier. It has great ankle support and good grip while walking in perpetually wet/icy ground. Was extremely surprised since I didnt know this brand. It is now my favorite hiking boot over my more expensive columbia waterproof hiking boot.