14 best photoelectric smoke detectors

Product description

The First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm features dual sensors to detect both smoke and carbon monoxide in a single device. A photoelectric sensor detects the smoke most often produced by smoldering fires, and minimizes false alarms from cooking smoke or shower steam. Additionally, the advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, such as faulty fuel burning appliances, blocked chimneys, and generators running inside or too close to homes. A loud, 85 decibel siren alerts you to the threat; unique alarm sounds and indicator lights on its face distinguish a smoke warning from a carbon monoxide warning. This carbon monoxide and smoke detector is battery operated, so you don't need an electrician for installation. Requiring just two AA batteries and featuring an easy access battery compartment for quick changes, this smoke and carbon monoxide detector has a single button that allows you to silence a false alarm or test the unit.

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 SCO5CN carbon monoxide and smoke alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. The alarm uses photoelectric smoke 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. The permanent sensors last the lifetime of the alarm. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. A low battery signal alerts you to replace the battery and end-of-life alarm of three chirps alerts you to replace the unit. Two AA batteries are included. 5-year limited warranty. UL listed. Not available for sale in Massachusetts.--Bree Norlander

What's in the Box

One combination carbon monoxide and smoke alarm, two AA batteries, and user's manual. This does not contain voice feature.

• Keep your family safe with this battery operated smoke and carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
• 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
• Battery operated unit installs quickly and easily without an electrician. Low battery signal mute, quiets low battery signal for up to 8 hours
• Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling
• 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 alarms are rigorously tested to meet UL standards
• 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:	pack is $30, 2 pack is $90. Why is a two pack so much? I thought the idea was to incentivize more product at a lower cost. This is halarious
Answer:	I no longer live in the apartment where I replaced the old smoke alarm, but you will love this one. It's so nice to flip the battery holder down and not have to remove the battery from the unit.
Question:	Advice on false alarms? Goes off every week or so. It's in our kitchen/living room, but goes off even when we are not cooking. Goes 1 min then stops
Answer:	No
Question:	I have these througout my house and rental unit. Installed them about 7 years ago and many malfunctioning. Any durability mprovments since 7 yrs ago
Answer:	The instructions that come with the unit duplicate what I have read from several Fire Department sources: you can place your unit on the ceiling, but AT LEAST 4 inches (10cm) from the wall. If you want to mount it on the wall, mount it MORE THAN 4 inches (10cm) BELOW the ceiling, but NO LOWER than12 inches (30cm) below the ceiling. It has to be high enough up the wall to "smell" the smoke, but that 4 x 4 inch (10cm x 10cm) area where the wall meets the ceiling can sometimes harbor a "dead zone" of still air where the smoke would NOT reach the detector quickly enough during a fire to warn you in time. Thus, do NOT mount your detectors too close to where the wall meets the ceiling.
Question:	How long do batteries last
Answer:	Ionization type. I actually looked at at manual to be certain.

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

Photoelectric sensor battery operated smoke alarm, designed to alert you & your family to the dangers of smoke & fire, includes a 9V, protecting you even during a power failure, UL listed & offers a 5 year limited warranty. This product adds a great value. Product is highly durable and very easy to use. This product is manufactured in china.

From the Manufacturer

70% of all home fire deaths occur in homes with no alarms or no working alarms, and nearly one quarter of smoke alarms in reported fires are not working. Kidde battery operated photoelectric smoke alarms are designed to help protect you and your family from the dangers of fire. Photoelectric sensing alarms may detect visible fire particles (associated with slow smoldering fires) sooner than Ionization alarms. Studies show both types will effectively detect either type of fire. For optimal protection, install both smoke alarm technologies in your home. Install UL listed smoke alarms on every floor of your home, in hallways, inside bedrooms and outside of sleeping areas. Replace smoke alarms every 10 years.

• Advanced photoelectric sensor is especially effective in detecting smoldering fires
• Battery backup 9V battery included (best with Polaroid 9 Volt batteries)
• Battery pull tab eliminates battery installation time and keeps battery fresh
• Quick connect power harness makes installation fast and easy
• Kidde’s smoke alarms meet the requirements of Underwriters Laboratories (UL), an independent facility that tests products for compliance with widely-accepted safety standards

User questions & answers

Question:	Is this model good tho replace my old Lifesaver Ionization Smoke Alarm Model
Answer:	Dear Customer, Its material is PC material, high temperature resistance, corrosion resistance, and has been tested by the US Federal Fire Safety Bureau for strict UL standards. Its chip is a photoelectric sensor, very sensitive and prevents false alarms
Question:	Is there any danger from any kind of radiation using this device
Answer:	Hi, Battery life is a section we value very much. The quality of the battery has been rigorously tested by all X-Sense engineers. It does work for 10 years. But it can't be replaced. Both the sensor and the battery have a 10-year lifespan and replace the entire smoke alarm after 10 years. If you encounter any problems while using the product, please contact us and we will fix it for you at any time. Thanks
Question:	How does this smoke detector mount to the ceiling
Answer:	Excellent question to which I have no answer. I would recommend the manufacturer's website. I can tell you that I have purchased many smoke detectors over the years. This one has some serious substance to it. Solidly built. All componets are internal, including the battery. I highly recomend the product. If for some reason it quit working after 5 years, I would still feel that I got my money's worth.
Question:	My alarm just started to go off. After removing it, it stopped. Then it started up again. There is no fire or smoke. Has my alarm become defective
Answer:	I just took a look and it must only flash when testing - I just watched it for over a minute and there was no flash.

• 【High Sensitive & Quick Responsive】: This smoke alarm adopts photoelectric technology to detect smoke. More sensitive to light smoke and slow smoldering fires, Timely alarm. Even in sleeping, there is no need to worry.
• 【Alarm Condition】: When the smoke alarm device detect particles of combustion and the concentration of smoke reaches the alarm threshold, the red LED will flash rapidly (one flash per second).The rapid flashing LED and pulsating alarm will continue until the air is cleared or the test button is released.
• 【Easy Installation】: Comes with a mounting bracket, screws and anchor plugs, just drilling holes in appropriate positions. Powered by one 9V battery (included), it will not be affected by power outage. Low power consumption, service live about 10 years. When an intermittent "chirp" accompanied by a red LED flash every 32 seconds indicates a low battery.
• 【Wide Range of Applications】: ABS material is heat-resistant and high-temperature resistant, and does not contain any radioactive material. Smoke alarms are suitable for most occasions, including Bedrooms, Corridors, Warehouse, Hotels, Offices, etc. Let you and your family get more care.
• 【Purchase Notes】: If you encounter any problems, please contact the seller in time, we will give you a satisfactory solution. Attention: 1. Please test it once a month to ensure that the smoke alarm works properly. 2. Please clean the dust on the alarm every 6 months to prevent false alarming caused by clogged smoke alarms.

User questions & answers

Question:	can it be reset after going off
Answer:	Your warranty starts at the date of purchase. Keep your receipt. Your 5 year shelf life starts the day you power it up. The expiration date is hard coded into the software and only starts the day you plug it in..... This is from BRK WEBSITE
Question:	What is the required weekly LED testing
Answer:	It doesnt matter. If you have a device alarming, you, family and pets need to remove yourself from the house and possibly call fire department. Both sources will kill you.
Question:	dimensions please? not package dimensions,,,i don't care about shipping. why is such basic info so elusive on amazon
Answer:	According to the National Fire Protection Association: Choose smoke alarms that have the label of a recognized testing laboratory.Install smoke alarms inside each bedroom, outside each sleeping area and on every level of the home, including the basement.On levels without bedrooms, install alarms in the living room (or den or family room) or near the stairway to the upper level, or in both locations.Smoke alarms installed in the basement should be installed on the ceiling at the bottom of the stairs leading to the next level.Smoke alarms should be installed at least 10 feet (3 meters) from a cooking appliance to minimize false alarms when cooking.Mount smoke alarms high on walls or ceilings (remember, smoke rises). Wall-mounted alarms should be installed not more than 12 inches away from the ceiling (to the top of the alarm). If you have ceilings that are pitched, install the alarm within 3 feet of the peak but not within the apex of the peak (four inches down from the peak).
Question:	how often do th ebatteries need replacing? Nothing was mentioned on the Amazon page. Thanks
Answer:	The "radioactive part" is how it works. Don't like it? Don't buy it. Simple. As for false alarms, this unit with its "radioactive part" is actually much more likely to give false alarms that condition people to ignore them. It is also much less sensitive to the smoldering, smoke-producing fires that are more common in homes. That's why ionization detectors are no longer recommended in residential settings. Experts now recommend only photoelectric devices in homes, so if you have these, you should replace all of them with the SC7010B.

Product features

PHOTOELECTRIC TECHNOLOGY

UL217 Certification ,Compared to non-UL certified smoke alarms, you can use our smoke alarms with greater confidence and safety. This is a photoelectric smoke alarm. Photoelectric technology is optimized to detect slow smoldering fires which generate light smoke, little heat and may smolder for hours before bursting into flames.

LOUDLY >85DB (A) AT 3M

Photoelectric Smoke Alarm features a loud 85-decibel horn. The alarm horn is loud & send clear warning to alert individuals to a potential danger. Help them to escape early.

Sound Pattern: Temporal 3(BI 0.5s - pause 0.5s -BI 0.5s - pause 0.5s - BI 0.5s - pause 1.5s)

MULTIPLE FLOOR PLAN

Proper placement of smoke alarms and regularly cleaning are very important. If you buy this alarm for house use, we recommend it be located near sleeping area, where it can wake you if you are asleep. Additional smoke alarms on every level and in every bedroom provide extra protection against fire hazard.

TWO PACK WITH ACCESSORIES

HASSLE-FREE INSTALLATION

WIDELY APPLICATIONS

Everyone and home all need it ! save you lives !!!

• Home fire starts every 83 seconds! That's why we need a smoke alarm? Photoelectric sensor smoke alarm to kill the fire at the beginning.
• Widely Used:The Photoelectric Smoke and Fire Alarm is applicable to Company, Factory, Hospital,Shopping Mall, Hotel, School, Housing,Warehouse,Etc

• 10-Year Battery & 10-Year Sensor: This smoke and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; saves you from constantly having to change batteries; an end-of-life signal will let you know when it's time to replace the unit for safety
• Practical LCD Display: Clearly indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working status of the alarm; if a CO concentration of 30-999 ppm exists for a certain time period, the screen will be backlit blue, and the LED indicator will flash red 4 times every 5.8 seconds
• 2-in-1 Accurate, Reliable & Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other; every second counts; detects both fast and slow-burning fires, and instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
• Simple to Use: Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 dB will sound throughout your entire home, instantly alerting the entire household, even those in sleep
• Quick & Easy Installation with Guaranteed Quality: Requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; certified to meet the UL 217 & UL 2034 safety standards for your peace of mind and absolute confidence in our product

Product features

When the LED indicator flashes RED, an alarm will sound, indicating one of the following four modes:

1. Smoke Alarm Mode: flashes red with 3 long beeps every 1.5 seconds.
2. CO Alarm Mode: flashes red with 4 quick beeps (every 5.8 seconds for the first 4 minutes, and every 60 seconds after 4 minutes).
3. Test Mode: flashes red with 2 sets of 3 long beeps, followed by 2 sets of 4 quick beeps.
4. Silence Mode: flashes red once every 5 seconds (no beeps).

When the LED indicator flashes YELLOW, it is important to check the working status of the alarm. There are three possible scenarios:

1. Low Battery Warning: flashes yellow with 1 beep every 60 seconds.
2. Smoke Malfunction Warning: flashes yellow 1 or 2 times with 2 beeps every 40 seconds.
3. CO Malfunction Warning: flashes yellow 3 or 4 times with 2 beeps every 40 seconds.

The LED indicator flashes GREEN to indicate the following three working modes (no beeps):

1. Standby Mode: flashes green once every 60 seconds.
2. Exiting Alarm Mode: flashes green once per second for 5 seconds.
3. Exiting Silence Mode: flashes green 3 times.

Practical LCD Display

• The display will indicate real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working status of the alarm.
• If a CO concentration of 30-999 ppm exists for a certain time period,the screen will be backlit blue, and the LED indicator will flash red 4 times every 5.8 seconds.

Technical Specifications

Power Supply: 10-year sealed lithium battery

Smoke Sensor Type: Photoelectric

CO Sensor Type: Electrochemical

Product Life: About 10 years

Safety Standards: UL 217 & UL 2034

Alarm Noise Level: 85 dB at 9.84 ft (3 m)

Product description

The First Alert SC7010B Hardwired Combination Photoelectric Smoke and Carbon Monoxide Alarm with Battery Backup delivers both smoke and carbon monoxide detection in a single unit. Equipped with a photoelectric sensor and Optipath 360 technology, the alarm detects smoke produced by smoldering fires while keeping false alarms to a minimum. The unit also features an advanced electrochemical sensor that detects carbon monoxide leaks from multiple sources such as faulty fuel-burning appliances and blocked chimneys. If a threat is detected, the alarm emits a spread spectrum horn tone that is designed to be heard by people with age-related hearing loss. Made to be hardwired directly into the electrical system of your home or facility, this 120-volt hardwired smoke detector features a backup battery that helps keep the alarm functioning even in the event of a power outage. The alarm's perfect mount system allows for easy installation and alignment, while its low battery latch gives a visual indication if the battery is running low. And thanks to the convenient test/silence button, it is easy to check alarm function and mute false alarms. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

From the Manufacturer

The BRK Model No. SC7010B is a wire-in, 120V AC 60Hz single and/or multiple station combination smoke and carbon monoxide alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings as defined in standard NFPA 101. Model SC7010B complies with UL217 and UL2034, CSFM, NFPA 72 and NFPA 720, HUD, FHA and other agencies that model their codes after the above agencies. It meets building codes where AC/DC photoelectric smoke and carbon monoxide alarms are required. The BRK SC7010B is a state-of-the-art hardwired with battery backup smoke/CO combo alarm that features a photoelectric smoke sensing chamber, an electrochemical CO sensor and an End of Life signal. The Spread Spectrum Horn Tone has a lower and varying frequency that makes it easier for the elderly with normal age related hearing loss to hear the horn. This alarm features two latching features and two silence features. Alarm Latch: Easily identifies initiating alarm even after alarm condition has subsided. Low Battery Latch: Identifies which unit is in low battery condition by blinking the green power light. Low Battery Silence: Temporarily silence the low battery chirp for up to eight hours. Alarm Silence: Silence alarm for several minutes. Other features include an 85dB horn, single button test/silence, an easy access battery drawer and dust cover. OptiPath 360 Technology: Exclusive patented technology provides 360 degrees of direct access to the smoke sensor. Two locking features are provided to prevent battery theft and/or theft of the unit. Connection to AC power is made with a Quick-Connect wiring harness. Installation is quick, easy and cost effective.

• Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
• Features electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor equipped with Optipath 360 technology that enhances detection with 360 degree access and reliably detects smoke from smoldering fires
• In case of danger, the loud spread spectrum alarm is designed to be heard easily by even those with some hearing issues
• Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
• 10 year limited warranty; Equipped with end of life signal chirp, so you know when it's time to replace the unit for your safety
• Rigorously tested to meet UL standards
• Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
• 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:	How often do these need to be replaced because of "end of life" warning? I feel like we are constantly replacing them and don't know what's normal
Answer:	The installation instructions for this unit notes that it can be wall mounted, "If allowed by local building codes," (check with your Buildings Department - since several codes are in use in various localities) - with the proviso that the top of the mounted unit must be between "4 inches and 8 inches" below the wall-ceiling meeting, to avoid dead air space.
Question:	Will this First Alert unit plug into my existing BRK 3-wire pigtail connector, or do I have to buy a BRK unit? Thank you
Answer:	Off-white.
Question:	Does anyone know if this smoke/carbon monoxide alarm is compatible with a house full of First Alert 9120Bs (smoke only)? Want them all connected
Answer:	Nor sure about that particular standard, but box states that it complies with ANSI/UL Standards, California state fire marshal, FHA, HUD, and National Fire Protection Association.
Question:	I have Model No. SC7010BV. Is the same replacement without the "V
Answer:	The beep is effective. It always seems to start in the middle of the night. I twist the unit off the ceiling and do a battery swap and have it back on the ceiling in less than a minute, craw back into bed before really waking up. It's not a pain to replace the batteries, it's very easy. Simply slide the tray out and pop new ones in. The batteries fit snuggly in the compartment and there are tabs that allow you to push the batteries out by applying pressure with your thumbs from the back side. There is an optional screw hole to make the battery compartment tamper resistant. This prevents people from easily taking the batteries to power their remote controls or whatever. When fire marshals inspect fire related deaths it's not uncommon to find the smoke and fire detectors had no batteries installed. This simple, optional, screw might seem like "a pain" to some people, but it's an easy way to save your life. This is a great unit. I have 6 in my house and I highly recommend them to everyone.

Product description

X-Sense 10-year battery smoke alarm (not hardwired), model SD06

• 10-YEAR BATTERY LIFE: Equipped with a sealed 10-year lithium battery for continuous power with no replacement required during the 10-year life of the alarm; eliminates any worry about battery removal or unauthorized deactivation of the alarm
• ACCURATE & RESPONSIVE: Adopts the most advanced photoelectric sensor, enabling the alarm to quickly detect dangerous smoke levels from slow-burning, smoldering fires; provides the earliest possible warning of fire while minimizing false alarms
• SELF ACTIVATION: This alarm will automatically activate when it is installed into the mounting bracket; the TEST/SILENCE button allows you to temporarily silence nuisance alarms, and the silence mode cannot be activated unless the unit is in alarm mode
• AUTO-CHECK FUNCTION: Constantly monitors itself and quickly warns you of faults or a weak battery; clearly informs you of the working status of the alarm with its 85 dB alarm and 3-color flashing LED indicator
• EASY INSTALLATION WITH GUARANTEED QUALITY: Requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; we provide a 60-day money-back guarantee and a 5-year warranty

User questions & answers

Question:	Does fit right in to the bracket, to replace an existing ceiling smoke alarm
Answer:	That information should be in the product description.
Question:	Is this hardwired or battery power only
Answer:	no
Question:	does this interconnect
Answer:	YES! I love it!!!!
Question:	Is the green light on all the time
Answer:	It's probably best to put a lightweight mattress on it. I have a Serta Perfect Sleeper Eurotop. It is extremely lightweight, very comfortable, and it doesn't add the extra weight that makes the slats on the frame squeak.

Product features

LED Indicator

This alarm uses a 3-color LED indicator (red, green, yellow) combined with the alarm sound, making it easy for you to check the alarm status.

Fewer False Alarms

Adopting advanced photoelectric technology, this alarm ensures more accurate alarms by taking 3 separate smoke samples before alerting, minimizing false alarms to avoid waking you from sleep.

Premium Quality

Made with an upgraded premium PC plastic housing and internal insect-proof stainless-steel mesh, this alarm is fire-retardant, high temperature resistant, and corrosion resistant. Reliability, high quality, and excellent performance maintain the alarm's functionality for 10 years.

Alarm Installation Guides

We recommend that you install a smoke alarm on every floor of your home, in hallways, between the sleeping and living areas, and underneath and in the junction of stairs.

Product description

Technical Specifications

Power supply: 10-year sealed lithium battery

Sensor type: Smoke: photoelectric

Safety standards: UL 217, ULC S531

Smoke sensitivity: 0.97-1.79%/ft OBS (UL 217); 0.97-2.29%/ft OBS (ULC S531)

Standby current: < 6 µA (avg.)

Alarm current: < 60 mA (avg.)

Best operating ambient temperature: 40-100 °F (4.4-37.8 °C)

Operating relative humidity: ≤ 85% (non-condensing)

Alarm volume: ≥ 85 dB at 9.84 ft (3 m)

Silence duration: Smoke: ≤ 9 minutes; ≤ 9 minutes (BSI)

  Package Contents

1 × Alarm Unit

1 × Mounting Bracket

3 × Screws

3 × Anchor Plugs

1 × User Manual

1 × Warranty Card

• Accurate, Reliable, & Highly Sensitive: The X-Sense fire alarm adopts the most advanced photoelectric sensor, enabling the alarm to quickly detect dangerous smoke levels from slow-burning, smoldering fire; provides the earliest possible warning of fire while minimizing false alarm
• Sleep Sound Without Annoying Chirps: The X-Sense fire alarm has been redesigned from the inside out, and it will confirm that smoke triggers the alarm instead of interference by taking 3 separate smoke samples, minimizing false alarm to avoid waking you from sleep at 2 a.m.
• 10-Year Battery Life: Keep your family safe with this 10-year battery-operated fire alarm that will provide constant monitoring, even if there’s a power failure. The X-Sense smoke alarm provides reliable and uninterrupted 24/7 protection so you can sleep safely.
• LED Light for Additional Notification: In addition to its alarm sound, the X-Sense fire alarm uses a 3-color LED light (red, green, yellow) so that even those with impaired hearing can check the alarm status easily. Brightness is also improved, so it’s easier to see the light during an emergency but the light won’t be a nuisance when you’re trying to sleep.
• ETL Listed: This alarm is approved by the ETL and in conformity with the UL 217 Standard. We provide a 60-day money-back guarantee and 5-year warranty for all X-Sense smoke alarms. If you have any questions, please feel free to contact us, and we will get back to you within 24 hours.

User questions & answers

Question:	Does this detect slow and fast moving fires or only the normal photoelectric type response as stated in its accompanying manual
Answer:	Sorry, This Speed Controller Can NOT Work with Brushless Motor.
Question:	Can I put this in unfinished attic? It gets to be 115 degrees on a summer day
Answer:	Yes
Question:	any daily unnecessary chirping
Answer:	No. 4 screw terminals
Question:	Is this a dual sensor detector, as in both the photoelectric and ionization sensors? Thanks
Answer:	No. They say 10-55 volts.

Product features

10-Year Battery Life

This 10-year battery-operated smoke alarm provides constant monitoring, even if there’s a power failure. Therefore, your home and family will be protected 24/7 so everyone can sleep safe and sound at night.

Self-Check Function

The X-Sense smoke alarm automatically checks its battery and sensor every 10 seconds to ensure the key sensor and critical circuit are working properly. However, you should test the buzzer and LED indicator once a week to ensure normal functioning.

LED Light for Additional Notification

In addition to its alarm sound, the X-SENSE smoke alarm uses a 3-color LED light (red, green, yellow), making it also suitable for those with impaired hearing to check the alarm status. Brightness is also improved, so it’s easier to see the light during an emergency but the light won’t be a nuisance when you’re trying to sleep.

Warning

Do not deactivate the alarm until the end-of-life signal has been heard. Once the maximum lifetime (10 years) is reached, this unit will beep 2 times every 30 seconds, indicating that it is time to deactivate and replace the alarm (see the user manual).

Technical Specifications

Sensor Type: Photoelectric

Product Life: 10 years

Safety Standard: UL 217

Best Operating Ambient Temperature: 40-100 °F (4.4-37.8 °C)

Operating Relative Humidity: ≤ 85% (non-condensing)

Alarm Noise Level: ≥ 85 dB at 10 ft (3 m)

Product description

Advantage

1.The smoke alarm with test button allows you to test the unit's functionality.

2.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.

3.The side battery drawer slides open for easy battery replacement. A blinking power indicator on the unit confirms that it is receiving power.

4.The alarm contains an optional pin to lock the battery and unit in place for tamper resistance.

5.It can be mounted on either the ceiling or the wall and can be used in mobile homes and RVs.

Attention1.The Smoke Detector contains the test button.Flickering power indicator,When the red LED light flashes for 32 seconds, it indicates that the smoke alarm is running normally.

2.When the alarm senses products of combustion and goes into alarm, the red LED will flash rapidly (one flash per second)..The rapid flashing LED and pulsating alarm will continue until the air is cleared or the test button is released.

Specifications:

1.DC 9V battery operated

2.Photoelectric chamber for early detection from all directions

3.Loud>85dB (A) alarm signal @3M

4.Flash alarm indicator (red LED).

5.Test button for easy recommended monthly testing

6.Low battery signal

7.Safety clip feature, does not allow mounting of smoke alarm without battery installed

8.Ceiling mounting

9.Easy to install with mounting bracket

10.5 years prodcut life time

• Sound& LED warning：When the alarm senses products of combustion and goes into alarm,the red LED will flash rapidly(one flash per second).The rapid flashing LED and pulsating alarm will continue until the air is cleared or the test button is released.Smoke alarms can only sound their alarms when they detect smoke or detect combustion particles in the air.They do not sense heat,flame,or gas.
• Photoelectric Technology: Our photoelectric smoke alarm with Photoelectric technology which is optimized to detect slow smoldering fires which generate light smoke, little heat and may smolder for hours before bursting into flames.
• Easy Installation: Can be installed in several minutes. Coming with screws and bracket. Powered by one 9V battery(included), it will not be affected by power outage. When an intermittent "chirp" accompanied by a red LED flash every 32 seconds indicates a low battery.
• Suitable for multiple places: This smoke alarm does not contain any radioactive material. Smoke alarms should be installed in every room (except the bathroom and kitchen), finished attics and basements, making sure the people in your home will be able to hear and respond to the alarm sound.
• Service：If there are any problems with our products ,you can contact us ,we must reply you within 24hours as soon as possible.NOTE: Please test it once a month to ensure that the smoke alarm works properly. Please clean up the dust on the alarm every 6 months to prevent the smoke alarm from being clogged or blocked.

User questions & answers

Question:	who is the manufacturer? is it kidde? what is the model number
Answer:	yes you need a 12vdc supply to run 12vdc motors as the Motor Speed PWM Controller dos not reduce voltage , it work with pulses and pass a percentage of any input voltage with in the mentioned range (10v-30v)
Question:	where is it made (country of manufacture)? is it UL rated
Answer:	Actually - No, not if it's something you want to ride on. The circuitry in this is simply not heavy duty enough to handle that kind of load or that large a motor. This circuit is intended for something on the order of a toy motor, no more than an amp or two at most.
Question:	where is it made
Answer:	You might cure that with a capacitor with a voltage rating higher than the supply voltage, and perhaps a capacity rating of 100 mfd. This capacitor type is polarity rated, so you would need to put it across the terminals going to the fan in way you are supplying the voltage. You would also have to be sure not to reverse the power to make the fan go the other direction. capacitor could probably be as low as 20 mfd. It can be placed anywhere in the line, or right at the fan. The capacitor should smooth out the chopping voltage. As scott says, it might not list to run on low power.
Question:	Does it take a standard 9 volt for replacement
Answer:	No. Your scooter will require a controller that will handle at least 25 amps (the formula is 300 watts, divided by 12 volts, equals 25 amps). This controller is rated at 3 amps continuous and 4 amps peak - at 12 volts that's only 36 watts continuous.

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

Kidde 21026043 battery-operated (not hardwired) combination smoke/carbon monoxide alarm with voice warning KN-COSM-BA. Interconnects - No.

• Voice Alarm – Announces the hazard type detected thereby helping to speed up the correct reaction to the hazard detected. Alarm announces “Fire” when a smoke or fire hazard is detected and announces “Warning, Carbon Monoxide” when a CO hazard is detected
• Combined Carbon Monoxide and Smoke Alarm – A single unit can be installed where previously, two were needed. Reduces installation time and helps to keep home decor attractive.
• Audio alarm: 85 dB at 10 feet. Test/Reset Button and LEDs – Tests alarm circuitry and triggers the voice announcement. Flashing green for normal operation and flashing red for alarm condition. Humidity Range: 10 percent to 95 percent relative humidity non-condensing
• Battery - Provides protection even during power outages when many fire and carbon monoxide incidents occur. The unit warns of a low battery condition by announcing “low battery” and by initiating an alarm chirp and activating a flashing red LED. The battery door will not close unless the batteries are properly installed. Note: The date printed on the item is manufacturing date, not the expiration date. Refer to the PDF attached below in the technical specification for manual.
• Voice Announcements - Hush Feature temporarily silences nuisance alarms with “Hush Mode Activated” and “Hush Mode Cancelled” voice announcement. If the alarm had detected a CO level of 100 ppm or higher, the unit will announce “Carbon Monoxide Previously Detected” to warn of the CO incident, when the Test/ Reset button is pressed. Temperature range: 40˚F (4.4˚C) to 100˚F (37.8˚C). Voltage (volts): 4.5

User questions & answers

Question:	How frequently do we need to change the batteries
Answer:	They don’t connect or require wiring, place them wherever needed
Question:	Can this unit be used to replace the hard wired smoke detector in my home
Answer:	I received the energizer E522 max 9 V new batteries
Question:	Need to replace a kn-cosm-b. is the mount the same on the much newer kn-cosm-ba
Answer:	I don't understand your question. All batteries will burn if you put them in a fire.
Question:	Does the smoke detector have both photoelectric and ionization sensors
Answer:	Malaysia

Product features

Easy Access Front-loading Battery Door

Easily replace the 2 AA batteries without disconnecting from mounting bracket. This alarm model also includes a safety feature in the battery safeguard – The battery door will not close unless the batteries are properly installed.

Giving You Peace Of Mind

There’s nothing more important than keeping your family and home safe, and when fires are a very common type of emergency a homeowner can face, you want to be prepared. The Kidde KN-COSM-BA combination Fire Detector and Carbon Monoxide Detector pairs two life saving devices into one unit. It uses an ionization sensor and electrochemical sensor to monitor your home for potential hazards, so you will always feel safe and confident.

Comprehensive Alerts

Voice alarms along with chirps indicate the hazard that has been detected for fast response. Alarms include:

> Fire: The red LED will flash along with three long beeps, followed by the message “Fire!”

> Carbon Monoxide: Four short beeps followed by the message “Warning! Carbon Monoxide!”

Product description

The Kidde P3010K-CO is a 10-year, sealed battery, smoke and carbon monoxide alarm that features photoelectric and electrochemical sensing technology with Smart Hush feature. This combination alarm combines the detection capabilities of a photoelectric sensor with that of an electrochemical sensor, which is used to detect CO. When either sensor notices a potential hazard, it will communicate with the other. Depending on what is detected, the alarm will adjust its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication enhances the alarm’s overall performance and significantly reduces the potential for a nuisance alarm. The sealed in lithium battery will power the unit for the entirety of its 10 year life, eliminating the need for battery replacement and worry about unauthorized battery removal. The alarm provides continuous protection from smoke and carbon monoxide, even during power outages. The alarm will automatically activate when it is attached to the mounting bracket; there are no pull-tabs, no switches, everything is automatic. At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement. The customer can use a simple tool such as a screwdriver to deactivate the unit, stopping the chirp and making it safe for disposal. Industry experts (such as the NFPA), recommend that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fires that can occur within the home. Ionization sensing alarms may detect invisible fire particles (associated with fast flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible fire particles (associated with slow smoldering fires) sooner than ionization alarms. Kidde Worry-Free Kitchen Smoke & Carbon Monoxide Alarm Part Number(Ordering Number):21009667. Put smoke alarms at both ends of a bedroom hallway or large room if the hallway or room is more than 30 feet long.

• Combination smoke and carbon monoxide alarm – Smoke and CO sensing technologies work together to detect real fires faster and reduce cooking-related nuisance alarms.
• Sealed-in lithium battery – Sealed-in lithium power supply; No battery replacement required over the 10 year life of the alarm. Eliminates worry about battery removal or unauthorized deactivation of alarm.
• Photoelectric Sensor – Smoke alarm contains advanced photoelectric sensor that may detect visible particles (associated with smoldering fires) sooner than ionization alarms.
• Self-activation – Alarm automatically activates when attached to the mounting bracket.
• Alarm memory – Rapidly flashing LED alerts user if the alarm has sounded since the last time the test/reset button was used.

User questions & answers

Question:	Are these alarms UL certified
Answer:	It is suitable for 24V 3A DC brush motors
Question:	whats the difference between kitchen and hallway
Answer:	It is suitable for DC brush motors within 12V120W and 24V240W.
Question:	There is a comment here in the ratings that suggest that this detector has a useful life of only one occurance. Is this true
Answer:	That is the job of the controller, it wil handle 24 volt to 12 without any problem, you can use a transformer dc only or 24 volt battery.
Question:	where is the tab i'm instructed to push in the tab and pull up to open the package
Answer:	What's your amp draw? I would go with something bigger, only rated for 10A continuous. The one I had melted down.

Product features

10-Year Battery

Always On: Peace of Mind

Photoelectric and Electrochemical Technology

• 【Photoelectric Technology&Material 】: Fire-Retardant ABS V0 Level.UL Listed 9V Battery-Powered Photoelectric sensor Smoke Alarms. photoelectric technology which is optimized to detect slow smoldering fires which generate light smoke, little heat and may smolder from all directions for hours before bursting into flames.
• 【Easy Installation】: Smoke detector battery operated. Can be installed in several minutes. Coming with screws and bracket. Safety clip feature,not allow mounting of smoke alarm without battery installed.
• 【Sound & LED Warning】: When the fire alarm detects smoke or detect combustion particles in the air it will sound their alarms(Alarm volume: > 85dB(A) @ 3 meters) and the red LED will flash rapidly. The LED light and alarm will continue until the air is cleared or the test button is released.
• 【Suitable for Multiple Places】: This smoke detector does not contain any radioactive material. It should be installed in every room (except the bathroom and kitchen), making sure the people in your home will be able to hear and respond to the alarm sound.
• 【Maintenance Tips】: Please test it once a month to ensure that the smoke detectors works properly. Please clean up the dust on the alarm every 6 months to prevent the smoke alarm from being clogged or blocked. The entry of dust and fiber can cause false alarm, just need to clean these foreign objects to resume normal work.

User questions & answers

Question:	Will this detect cigarette smoke
Answer:	I believe the site you are on, you are ordering a single glove. You are able to order a pair of these gloves but you need to search for them from other available options. If you read the text it is clear that this site is ONE glove only.
Question:	Wont ship to california why
Answer:	Yes. Without it the steel stitching is painful.
Question:	Is it easy to change the battery on the smoke detector
Answer:	The description says "Stainless Steel". For rust resistance, the stainless steel would be non-magnetic. Most steel that is magnetic will rust and you don't want this in your glove.
Question:	It blinks every 20 seconds or so. Is that normal
Answer:	They are made in China. That information is on the box with enclosed glove.

Product features

SOBROVO Photoelectric Smoke Alarm

1. This unit is a photoelectric smoke alarm. The photoelectric technology ,it is more sensitive in detecting slow smoldering fires which generate light smoke, little heat and may smolder for hours before bursting into flames.
2. This smoke alarm dose not contain any radioactive material.Smoke alarms should be installed in every room (except the bathroom ),finished attics and basements, making sure the people in the home will be able to hear and respond to the alarm sound.
3. Applicable to all kinds of places：The Photoelectric Smoke and Fire Alarm is applicable to Company, Factory, Hospital,Shopping Mall, Hotel, School, Housing,Warehouse,Etc.

Product Description：

power:DC 9V battery

Operation current:<15uA(standby),<30mA(alarm)

alarm volume:>85dB(A)at 3 meters.

Low battery warning:6.5-7.8V

Alarm sensitivity:1.51-2.64%ft OBS

Comply with:UL217&CAN/ULC-S531

Battery sepecification:DC 9V(Alkaline.Carbon Zinc,Lithium battery)

Please note: The battery life of this smoke alarm is 1 year, and an intermittent "chirp" accompanied by a red LED flash every 32 seconds indicates a low battery. This is not the case that smoke alarm false alarm, but remind you to change the battery.

You'd beteer to use the GB brand battery when replacing the new battery, otherwise it may not match or fail to meet the long term standby use of the product.

Product description

Complete Home Protection

According to US data analysis, a family fire begins every 38 seconds. The faster you know about the fire, the sooner you start moving your family, and the smoke alarm at work reduces the risk of home fire deaths by 50%.

Advantage

1.The smoke alarm with test button allows you to test the unit's functionality. 

2.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. 

3.The side battery drawer slides open for easy battery replacement. A blinking power indicator on the unit confirms that it is receiving power.

4.The alarm contains an optional pin to lock the battery and unit in place for tamper resistance. 

5.It can be mounted on either the ceiling or the wall and can be used in mobile homes and RVs.

Attention1.The Smoke Detector contains the test button.Flickering power indicator,When the red LED light flashes for 32 seconds, it indicates that the smoke alarm is running normally.

2.When the alarm senses products of combustion and goes into alarm, the red LED will flash rapidly (one flash per second)..The rapid flashing LED and pulsating alarm will continue until the air is cleared or the test button is released.

Specifications: 

1.DC 9V battery operated 

2.Photoelectric chamber for early detection from all directions 

3.Loud>85dB (A) alarm signal @3M 

4.Flash alarm indicator (red LED). 

5.Test button for easy recommended monthly testing

6.Low battery signal 

7.Safety clip feature, does not allow mounting of smoke alarm without battery installed

8.Ceiling mounting 

9.Easy to install with mounting bracket 

10.5 years prodcut life time

• Photoelectric Smoke Alarm Sensing Technology: A faster sensing technology at detecting the dangerous situation than ionisation alarms, red LED will flash and the alarm pattern will sound, Loud 85 decibel alarm with compensation design.
• Battery-Powered Smoke and Fire Alarm Detector: no wire needed，not Hardwired
• Test/Slience Button: Tests the unit for proper operation and resets the carbon monoxide alarm,Alarm Volume: Loud > 85dB(A) at 1 meters.Loud 85-decibel alarm is designed to be heard easily.Pls kindly press if false alarm.
• Easy Install and Use: The alarm can easily install with mounting bracket.No hardwired anymore, very convenient to install at home or bedroom - wall mount, screws included.
• Safety and 5 year life: .Low battery signal lalarm and "end of life"warning ensures the detector can work normal. Environment friendly, without smell, radiation or harm.If any problem,contact with us without hesitable,we will reply to you asap.

User questions & answers

Question:	what color is this
Answer:	Just a little off white. Doesn't glare. Goes well on my ceiling-white ceiling, but it's not that white.
Question:	Will a candle in the room set off these alarms
Answer:	No
Question:	Do they go off together when go off
Answer:	NO THEY ARE BATTERY OPERATED
Question:	do you have restrictions sending the product to California
Answer:	I just tried to order them but they won't ship to California.