8 best detector
A detector, in the context of "Metal Detectors" and its relation to "Outdoor Power Tools" and "Patio Lawn Garden," typically refers to a metal detector device used to locate metal objects buried in the ground. Here's what you need to know about metal detectors in this context:
Metal Detectors: Metal detectors are electronic devices that emit electromagnetic fields to detect metal objects buried in the ground. They consist of a control unit and a search coil. The search coil generates an electromagnetic field, and when it encounters metal, it induces a signal in the coil, which is then interpreted by the control unit.
Functionality: Metal detectors work on the principle of electromagnetism. When the coil's electromagnetic field encounters a metal object, it disrupts the field, generating a signal.The control unit processes this signal and alerts the user, typically through an audible sound or visual display.
Outdoor Power Tools: Metal detectors are considered outdoor power tools because they are commonly used outdoors, especially in fields, parks, beaches, and other outdoor areas. They help in locating various metal objects like coins, jewelry, artifacts, and even underground utilities.
Applications: Metal detectors have diverse applications, including treasure hunting, relic hunting, archaeological exploration, security screening, and locating lost items. In the context of "Patio Lawn Garden," they can be used to find buried metallic objects in garden areas.
Types: Metal detectors come in various types, including:
- VLF (Very Low Frequency) Detectors: Common for general-purpose use and are sensitive to a wide range of metals.
- PI (Pulse Induction) Detectors: Provide better depth penetration and are suitable for highly mineralized soils and beach hunting.
- Beat-Frequency Oscillation (BFO) Detectors: Simple and typically used for hobbyist purposes.
Features: Modern metal detectors often have features like discrimination (to ignore certain types of metals), adjustable sensitivity, depth indication, and ground balance adjustment to enhance the accuracy and usability of the device.
In summary, a metal detector is an electronic device used outdoors to locate metal objects buried in the ground by emitting electromagnetic fields and detecting disruptions caused by metal. They are popular outdoor power tools commonly used in various activities, including treasure hunting, security, and hobbyist metal detecting.
Below you can find our editor's choice of the best detector on the market
First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Battery Operated, SCO5CN
FIRST ALERT
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. |
Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3
Kidde
Product description
Plug-In carbon monoxide alarm with battery backup.
Protect your family from the dangers of carbon monoxide (CO) exposure with the Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display. The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO. It features a digital display that shows CO levels in parts per million allowing you to see if, how, and when levels change.
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 This discreet alarm is designed to fit into any standard A/C outlet in your house. View larger. |
 The easy-read digital display updates every 15 seconds to indicate any abrupt changes or alarming trends in CO levels. View larger. |
Designed for home use, the Kidde KN-COPP-3 Nighthawk is a UL-listed, A/C-powered, plug-in CO alarm that utilizes sophisticated electronic components and sensor technology to protect you and your family from the dangers of CO. It plugs directly into a standard A/C outlet and includes a 9-volt battery backup that provides continuous monitoring of CO levels--even during power outages.
About Carbon Monoxide: The Silent Killer
The leading cause of accidental poisoning deaths in North America, carbon monoxide (CO) is often referred to as the silent killer because it's odorless, tasteless, and invisible. Carbon monoxide poisoning can come about via a number of sources, including everyday items and appliances in your home or office. And because symptoms of CO poisoning mimic the flu or other common illnesses it can often go undiagnosed.
Audible Alarm Pattern Alerts you to Elevated CO Levels
When placed on every level of your home, alarms like the KN-COPP-3 Nighthawk can help protect everyone in the house from CO exposure by giving you an unmistakable signal when levels have reached an unhealthy point. If unhealthy levels are detected, the alarm will emit four quick audible beats every five seconds until either levels decrease or the reset button is pressed.
Easy-to-Read Digital Display Shows CO Levels
The KN-COPP-3 Nighthawk is unique among traditional CO alarms because of its digital display. This display clearly shows levels of CO that the unit has detected and stored-- from 30 to 999 ppm--and it updates every 15 seconds to indicate any abrupt changes or alarming trends. The display also shows the peak CO level recorded by the alarm since it was last reset or unplugged.
LED Shows Sensor Status
With the KN-COPP-3 Nighthawk, you never have to wonder if the sensor is functioning properly. A blinking dot in the lower right-hand corner of the display denotes normal operation, so you can trust that it's working. In addition, you can test alarm function by pressing the test/reset button at any time to verify that the horn and electric circuitry are operating properly.
Convenient Mounting Options
The KN-COPP-3 Nighthawk has a low-profile design that makes it suitable for any room in your home. The detector can be plugged into any standard A/C outlet; it's plug can be snapped into the back of the unit and can be rotated so the alarm remains vertical, independent of whether the electrical socket is mounted vertically or horizontally. In addition, the alarm comes with a 6-foot extension cord, so the unit can be plugged into the wall outlet and then placed on a table or shelf. For the most thorough protection, place an alarm on every level of your home.
The UL-listed Kidde KN-COPP-3 Nighthawk has a seven-year life and is backed by a five-year limited warranty.
About Kidde: A UTC Fire and Security Brand
Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb Detector Lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.
What's in the Box
Kidde KN-COPP-3 Nighthawk CO Alarm, 9-volt battery, mounting hardware, and installation guide.
 Keep your family safe by placing alarms and extinguishers in each area of the house, and by having a fire escape plan. Click here for a detailed image. |
From the Manufacturer
The leading cause of accidental poisoning deaths in North America, Carbon Monoxide is odorless, tasteless and invisible, it's a silent killer. Kidde CO alarms include the most accurate sensing technology available, the patented Nighthawk electrochemical sensor. This alarm can be mounted three ways: plug directly into AC receptacle, mount on tabletop using 8 foot power cord, or wall-mount. The digital readout continuously displays carbon monoxide levels from 30-999 parts per million. This unit has a loud, 85-decibel alarm that sounds when CO reaches dangerous levels. One of the features of this product is peak level memory, which means this unit will recall highest level of CO present since previous reset. Install at least one CO alarm on every floor and in sleeping areas. Make sure CO alarms are at least 15 feet away from cooking or heating appliances to prevent false alarms. Replace CO alarms every 5 to 7 years to benefit from the latest technology upgrades.
- Peak level button – Displays the peak CO level recorded by the alarm since it was last reset or unplugged
- Test button functions – Tests the unit for proper operation and resets the carbon monoxide alarm
- LED operation – Blinking dot in lower right corner of display denotes normal operation
- Ten years after the initial power up, this alarm will “beep” two times every 30 seconds to indicate that it is time to replace the alarm.
- Note: This CO alarm is not battery operated. However, these alarms are equipped with 9 volt battery backup – the 9 volt battery is to supply short term back-up during a power outage.
- Power source: 120VAC. Temperature range-40˚F (4.4˚C) to 100˚F (37.8˚C). Humidity range-5%-95% relative humidity (RH)
Product features
Easy to Read Display
This plug-in CO alarm is designed with a clear, visible readout that will accurately record the levels of carbon monoxide present so that you can quickly know if an area of your home is at risk. It measures CO levels between 30 and 999PPM, and the display will also indicate if the battery needs to be replaced.
Unbeatable Protection
Always protect your family and home by making sure you are prepared for any emergency or hazard with the Kidde plug-in carbon monoxide detector. This CO meter uses an electrochemical sensor and features a clear digital display screen to monitor and record any CO levels in any room of your house. This sensitive and clear detector will leave you confident that you are protected against carbon monoxide.
Peak Level Memory Feature
Displays the peak CO level recorded by the alarm since it was last reset or unplugged
Kidde 21026043 Battery-Operated (Not Hardwired) Combination Smoke/Carbon Monoxide Alarm with Voice Warning KN-COSM-BA
Kidde
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!”
First Alert BRK SC9120B Hardwired Smoke Detector and Carbon Monoxide (CO) Detector with Battery Backup
FIRST ALERT
Product description
The BRK SC9120B hardwire combination smoke and carbon monoxide alarm detects two hazards with one simple unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources including gas or oil furnaces, gas clothes dryers, water heaters, fireplaces, wood stoves, charcoal grills, gas ranges, and space heaters. A clogged chimney, improper venting, and attached garages can also cause carbon monoxide accumulation. The BRK SC9120 hardwire combination smoke and CO alarm with battery backup includes these features: Quick plug in power connector for easy installation, 120 volt AC inter connectable (with maximum 18 compatible devices 12 other compatible smoke alarms + 6 compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. Automatically performs internal test of functionality. Latching alarm indicator which automatically identifies which unit initiated the alarm. Battery drawer lock and mounting bracket lock for tamper resistance. AC power indicator and alarm indicator light. Low battery warning "chirp" and missing battery tab. 9 volt battery backup for peace of mind during power outages. All BRK Electronics carbon monoxide alarms are listed to UL Safety Standard 2034 for residential carbon monoxide alarms. Includes 9 volt backup battery. 7 year limited warranty. Includes: One combination smoke and CO alarm, one 9 volt battery, and user’s manual.
- 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 an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.
- 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
- Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat 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 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: | What is the manufacture date on these items |
| Answer: | Hello. Yes, but not the way you mean. When the alarms go off, there is always one alarm going off and setting off all of the others. This alarm will have a green light flashing every second as well as the red light. You have to identify that alarm and either put it in HUSH mode or unplug it and take it down to stop the others. This is intentional so that if you are not leaving the house then you are identifying and investigating where the smoke situation is and if there is danger. The HUSH mode will make the alarm require more smoke to go off and for a small amount of smoke will stop it for about 8 minutes If there is too much smoke, the HUSH mode will not stop the alarm for going off. |
| Question: | If the alarm goes off, how can you tell whether it's due to CO or fire if there is no voice alert |
| Answer: | Hello. Yes, this alarm comes with a wiring harness connector. |
| Question: | Because its a combo alarm where is the best place to install it since smoke rises and carbon monoxide doesn't |
| Answer: | Hello. The answer is no, the battery is only a temporary back up. If you want an alarm that is battery only, you will want our KN-COPE-D. |
| Question: | Why does this model contain the radioactive part? I am sure you are going to tell me that it is a trace amount and that it has all approvals |
| Answer: | Hello. When plugged in AC power, it is supposed to have a solid green LED light. When running on battery alone, it should have a green light that flickers every 60 seconds. If this is not what is happening, call us when you are on location with a ladder at 1-800-880-6788 so we can figure out what is going on and how we can resolve this. |
| Question: | When these are interconnected with other units, can hushing one of them hush all of them? Some of mine are in places that are hard to get to |
| Answer: | I paid FOR for 6 and only got 4. It’s listed as 6. I had to buy two more from Home Depot. DO NOT BUY THIS ITEM. |
| Question: | does it come with the hardwire connector |
| Answer: | Does not connect to hard wire. Only battery |
| Question: | Do you have to hardwire it in? Can it run on just the battery |
| Answer: | I just checked 2 of them, and am unable to locate that information. |
| Question: | How do you tell if it is working properly. Is it supposed to have a constant light |
| Answer: | The back cover comes off install battery and replace |
Product features
Always Alert
In order to monitor your home even if you are away, this detector includes an Alarm Memory feature. If the green LED is blinking once every 16 seconds, the unit has detected CO levels of 100PPM or higher, or detected smoke and then ceased its alarm. Pressing the Test/Reset will reset the memory and inform you of the hazard detected.
Easy to Install
Ensure the safety of your family and home with the combination smoke and carbon monoxide alarm from Kidde. This is a hardwired alarm that can be used in an interconnected system, and it features a battery backup, in addition to voice alerts. Using an advanced photoelectric sensor, capable of detecting visible fire particles associated with smoldering fires, and an electrochemical sensor for CO detection, you can rest easy and feel protected.
Easy Access
If the low battery warning sounds, there is a convenient front-loading battery door so that you don’t have to remove the alarm from its mounting bracket to replace the alarm. Additionally, to ensure that there is always a properly functioning battery, the battery compartment will not close if the battery is not installed correctly.
ESCORT MAX360 Laser Radar Detector - GPS, Directional Alerts, Dual Antenna Front and Rear, Bluetooth Connectivity, Voice Alerts, OLED Display, Escort Live
Escort
Product description
The Escort MAX 360 features Bluetooth connectivity for instant access to the Escort Live app. Escort Live keeps drivers aware of upcoming alerts reported by other users in the area, and gives you access to local speed limit data for over speed alerts, right out of the box. This driver alert system paired with the power of Escort Live gives you the ultimate driver protection. The exclusive driving community allows drivers to share and receive real time alerts through the app or when any Escort detector senses a threat.Laser detection:Quantum Limited Video Receiver
- Escort raises the bar once again by adding directional indication to its award-winning Max detector line. The all-new Escort Max 360 provides drivers with extreme range, state of the art response time, pinpoint precision and directional alert display
- Unmatched detection - Escort Max 360's front and rear antennas scan rapidly in all directions harnessing the lightening-fast focus of Digital Signal Processing (DSP) to find threats faster and more accurately than any other detector.
- Rich data plus the power of community - Escort Max 360 protects drivers beyond conventional radar and laser threats by preloading our Defender Database of thousands of red light and speed camera locations in North America.
- Unmatched precision - Escort's Max 360's five levels of filtering ensure the quietest ride. Escort combines three driving modes plus speed-based sensitivity, Cruise Alert and seamless connectivity via Bluetooth to its Escort Live app.
- Simple communication - Escort Max 360 makes locating and identifying threats easy. Directional arrows display the location of threats while a high-resolution graphic display shows the type, strength and quantity of signals plus real-time speed limit data
User questions & answers
| Question: | I could have sworn this same detector sold for $449 (or something close to that) before the holidays on Amazon...has it really jumped $200 since then |
| Answer: | I bought mine right at Thanksgiving for 499 on black Friday. You just have to caught it at the right time when it's on dale |
| Question: | What has longer distance 9500ix or max |
| Answer: | I own both radar detectors and I can tell you that the 360 Max does not see as far as the 9500ix!! The 360 does see front and back And I do like that!! |
| Question: | Does this come with the suction mount |
| Answer: | Yes |
| Question: | Does the mount for the 9500xi fit the max |
| Answer: | No, the mount for the 360 is magnetic, incompatible with the 9500xi and visa-versa. |
| Question: | If I power the device off and leave it plugged in does it drain my car's battery |
| Answer: | No it will not drain your car battery. |
| Question: | Is the firmware upgradable and if so, does it run on Windows only |
| Answer: | the firmware is upgradable, I am not certain if we have an upgrade out for that model yet (it is very new) but you can use windows and mac to update. |
| Question: | is this wireless or do I need to keep it plugged |
| Answer: | The unit comes with the DC cord and needs constant power in order to operate. |
| Question: | What is the range of this device |
| Answer: | Is not long rangh |
Product features
Uniden DFR8 Super Long Range Laser and Radar Detection, Advanced K/KA Band Filter, Voice Notifications, Ultra-bright Multi-Colored OLED Display
Ultra-performance, Super Long Range Laser Radar Detection with Voice Notifications. Ultra-bright Color OLED display.
ESCORT MAX 360
The ESCORT MAX360 provides full 360° protection against all potential ticket threats. The forward and rear facing dual antenna system provides pinpoint precision to accurately indicate the direction of the threat.
ESCORT Live APP
Real-time alerts from a community of over 3 million drivers.
Dual Antenna System
Front and rear facing antennas provide comprehensive all-around detection.
360° Directional Alert Arrows
Arrows indicate the direction of the radar source for 360° protection
Defender Database
Get a bird’s eye view with red light and speed camera alerts in advance.
AutoLearn Technology
Intelligent GPS-based technology learns your route and rejects false alerts.
Kidde AC Carbon Monoxide Detector Alarm | Plug-In with Battery Backup | Model KN-COP-DP2
Kidde
Product description
1111111111.
From the Manufacturer
Carbon Monoxide Alarm AC Powered with Battery Back up; Tamper resistant feature; Led operation; Test reset button; Alerts user to replace after 10 years of operation; Low battery hush; Event memory; UL listed.
- Tamper resist feature – Can be activated to cause unit to go into alarm if it has been unplugged or has come loose from the outlet
- 2 LED’s: Red - Illuminates when in alarm mode. Green – AC power is present, normal operation
- Test/reset button: Tests CO alarm circuit operation and allows you to immediately silence the alarm
- End of life alarm: Alerts user to replace CO alarm after 10-years of operation
- Provides peace of mind against the silent killer; Temperature range: 40˚F (4.4˚C) to 100˚F (37.8˚C)
User questions & answers
| Question: | When I unplug this device the green light goes off even though the batteries are installed as a backup. Is that normal |
| Answer: | It's about 5 1/2 in from hinge to hinge ~ 14.5 cm. It does provide full cover. The foam is flush with my face without being uncomfortable. It however is not waterproof. The foam has air slots so it can breathe. I've used these for Chemistry lab as well as wood working, and they work great. |
| Question: | When I try put battery in or plug it in, the alarm goes off! Does that alarm sound stop? It's brand new |
| Answer: | They stay on surprisingly well! I use them for my dog grooming business. They are light weight so that works good for me. They might be a bit too light for sports. If you got hit with a ball they would probably crack and potentially cut you. |
| Question: | How do you turn on the "low battery hush |
| Answer: | Yes, it should do a good job to keep out drywall dust. However, I ended up removing it due to condensation buildup while using it |
| Question: | What is the location of the wall plug on the device? Will it cover the entire outlet |
| Answer: | yes they can fit over Rx glasses but I don't recommend because they became blurring and you will not see very well |
Product features
Quality Protection
The Kidde KN-COB-DP2 plug-in carbon monoxide alarm with battery backup provides you and your family with a warning signal to protect against dangerous levels of carbon monoxide in your home. The battery backup feature provides continuous monitoring of CO levels, even during power outages when AC-only units are not providing protection. The KN-COB-DP2 alarm has a 10-year product life, providing 40% longer protection than other CO alarms.
Protection You Can Trust
Nothing is more important than making sure your family is safe and prepared for anything, and with this plug-in carbon monoxide detector from Kidde, you will always be afforded peace of mind! This CO alarm includes a battery backup to make sure it is monitoring your home at all times and uses high-tech electrochemical sensors to provide accurate carbon monoxide readings that will always keep you protected.
Plug-in to Peace of Mind
To prevent nuisance alarms from everyday activities, CO detectors are time-weighted alarms that are based on time and the concentration of CO levels. This unit will only sound an alarm if low levels of CO have been detected over a long period of time, but high or unhealthy levels of CO will immediately trigger an alarm.
Corentium Home Radon Detector by Airthings 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
Airthings
Product description
The Corentium Home by Airthings radon detector is a state-of-the-art measuring instrument that combines ease of use and performance. The Corentium Home by Airthings radon gas detector allows you to take a reading of the radon levels and its LCD screen displays the average daily, weekly and long term concentrations. Powered by 3 standard AAA batteries, the radon monitor makes it easy to take measurements from one room to another in order to get an overview of the concentrations of radon in a home, workplace, school, a daycare centre or any other location. The Corentium Home by Airthings radon detector is also an essential tool to use when performing property inspections or when checking the operation of a radon mitigation system. The internal architecture of the Corentium Home by Airthings radon monitor comes from advanced technology normally reserved for commercial-type detectors. Particular attention has been paid to the quality and protection of the internal components, allowing the use of algorithms for signal analysis that are more sophisticated. The Corentium Home by Airthings radon gas detector quickly adapts to its environment and eliminates inaccuracies related to external factors, allowing it to obtain the best accuracy in its niche. The Corentium Home by Airthings radon monitor is guaranteed for one year and in normal home use, it requires no annual calibrations throughout its useful life, estimated at over 10 years.
- FIRST OF ITS KIND: The first battery-operated, digital radon detector. Monitor your home without the need for an outlet.
- LONG TERM MONITORING: Monitor for cancer-causing radon gas. Long term monitoring is necessary as radon levels fluctuate daily.
- BE IN CONTROL: Take action if your radon levels are high. Know if your improvements have worked by checking the short term, on-screen readings.
- RADON REPORT: Generate a radon self-inspection report easily, whenever you need it.
- NO LAB FEES: Unlike a traditional radon gas test kit, receive your first indication of radon levels within 24 hours and no lab fees, ever
- FAST RESULTS: On-screen results show both long and short term readings, for a quick overview of your radon levels.
- What you get: Airthings Corentium Home, 3 AAA batteries, Quick Start Guide, Airthings 12-months & Customer Support access via email or live chat directly from the Airthings App or website
User questions & answers
| Question: | I see there are air holes in the back, so if it is placed against a surface, won't it impede the airflow into the detector |
| Answer: | According to the company's website, the unit should be placed on its back (display facing upwards), on a flat surface, at breathing-level height, and away from windows, doors, air vents, etc. See https://support.airthings.com/hc/en-us/articles/115003370189-How-do-I-place-my-Home-radon-detector-to-obtain-correct-measurements- Or as their FAQ answer states: "You can just lay it flat on a table or a shelf. The air flows into the Radon chamber as usual." https://support.airthings.com/hc/en-us/articles/115001097069-Can-I-just-lay-the-unit-flat-on-its-back-side- |
| Question: | what is the shortest amount of time you can do a test with this device? a home inspection last only a few hours..will it have to be left over night |
| Answer: | Professional testers need to be used for a 48 hour test. For this home unit, it should run at least a week to be somewhat accurate. A month would be better. It will have a 20% deviation for a 48 hour test. 7 day test should be around 10% deviation and 2 months around 5%. Right now, mine has about a 30% deviation compared against professional 48 hour testers. I'm contacting support now for help. I've owned it for about 6 months. |
| Question: | Are we positive the readings are accurate? I have now tested the first floor of the house and am getting a reading of 7.5 pCi/l |
| Answer: | We have two older (15+ years) Safety Siren meters that read 2.3 & 2.4 for both long and short readings and seem stuck even after a reset/retest in our radon mitigated basement. The new Airthings 223 started a little over 2.0 and slowly dropped to 1.8. Yesterday I resealed the sump pit covers to the floor and the Airthings 223 1-day average already ( |
| Question: | how often does the tester need to be calibrated and how much does it cost to calibrate |
| Answer: | My answer has nothing to do with radon concentration in the tested environment, but incorrect terminology being used on this discussion thread. Resetting the radon sensing instrumentation means system initialization to factory calibration, as the unit is not user calibrate able. Calibration implied by this question is to a standard, and it must have been done with the prototype designs when tested against known radon concentrations in chambers...using perhaps master instrumentation. I think this device can give you values within some level of confidence like 95%...but the measure value of any unit like this is not to be taken with 100% confidence. |
Product features
Long and short term trends help you stay on top of radon levels.
Monitor your air quality.
Radon gas is in the air all around us and levels fluctuate daily. The good news is that a digital radon detector warns you when levels are getting high. Simple fixes around the home can dramatically improve your air such as increasing ventilation or sealing cracks in floors or even installing radon mitigation systems and radon fans.
Continuous, long-term monitoring
21,000 deaths are attributed annually to radon gas in the US alone. This and other radon side effects can be prevented by monitoring.
Remember to monitor for radon daily so that you can make small adjustments to improve the quality of your air.
Odorless, colorless, tasteless
Radon is a naturally occurring, radioactive gas that comes up from the ground and can accumulate to unsafe levels in the home. It is odorless, colorless and tasteless.
Lungforce - American Lung Association
Airthings supports lung health and lung cancer research by donating USD1 to the American Lung Association for each radon measuring Airthings product sold by Amazon. (Through Jan 31, 2021, up to 25K.)
Quick.
See the first indication of your radon levels within 24 hours. Nothing to send to a lab and no fees. Accuracy improves with time: after 7 days, within 10% and after 2 months, within 5% of actual radon levels. Easily reset your device to test a different room.
Simple.
The first battery-operated digital radon detector can be placed anywhere in your home. The batteries last up to two years, making it easy to radon test every room of your home.
Accurate.
Developed by our in-house Norwegian CERN particle physicists, our state-of-the-art radon testing sensor is incredibly accurate. Get meaningful results with continual monitoring for short and long term averages.
Radon levels fluctuate daily.
Peace of mind with daily monitoring: See both long and short term levels to make the right changes for your home. Generate a radon report as evidence for low levels when selling your home.
Bounty Hunter TK4 Tracker IV Metal Detector
: Bounty Hunter Product Model: Gold Digger Product Name: Tracker IV Gold Digger Metal Detector Marketing Information: The stylish Gold Digger Metal detector will detect all kinds of metal from iron relics, coins and household items to precious metals like silver and gold.ons. Streamlined in appearance, with only two operating controls and a mode selection switch, the Tracker IV has eliminated the most difficult aspect of metal detector operation: Ground Balancing. With built-in Automatic Ground Trac, the Tracker IV balances for mineralization while you detect. The Tracker IV will detect in extreme ground conditions from salt wet beaches to highly mineralized inland sites with no operator adjustments to the circuitry and with no loss of sensitivity. Product Type: Material Detector Technical Information Detectable Medium: Gold Coil Size: 8 Interfaces/Ports Interfaces/Ports: 1 x Mini-phone Headphone Battery Information Number of Batteries Supported: 2 Battery Size Supported: PP3 Power Description Power Source: Battery Physical Characteristics Form Factor: Long Handle Warranty Standard Warranty: 5 Year. Length adjusts from 44 in. to 51 in. padded armrest and cushioned handgrip S-rod handle for a more-ergonomic, less-fatiguing experience.
