Top positive review
10 people found this helpful
Big improvement đ
By #AskMissPatience on Reviewed in the United States on February 7, 2025
Upon recommendation for ability, and the fact our current CO detector is pushing seven during renovations. It attaches to the ceiling. Figured replacement early based on quality of function for new device and huge savings to buy two as singles if worth it. As vintage ceiling tile are being installed and this device is flexible as to where it sets up. Can be plugged in with the back up battery or wall mounted with battery alone. Although itâs a bit large has a keen sense of detection. Thereâs no price or device size that matters with safety. But if ya can score a discount kudos. No matter what detector you buy make sure it has a digital read on how much CO2 is invading when it does. To know whatâs safe ⌠0 đ all seriousness, under 30. The booklet explains the levels. How the device will function in a warning situation. Symptoms o look out for. How long itâll take to read CO2 depending on how severe it is. Itâs recommended to take one on trips when staying at hotels and this detector is easy to set up anywhere. The two pronged action is helpful since this vintage house has a mix of two and three. But for a trip the 9 volt battery is good to go. For RVers this is a must have. Even in a van camping. Better to be safe than sorry. Tip: Write the date of install in permanent marker on the face. This way no need to remember. Tip 2: Same with smoke and fire detectors. For those , what I do is write the yr and month the battery is changed every time. Thin permanent marker should leave plenty of room. Unless hardwired and in ten you just emplacements it. Still, add the date of install. Same with fire extinguishers. Doesnât hurt to have the fire department inspect it periodically. I know people whoâve lost their hem to fire. Not fun. I know people, like myself, a CO detector got us outta the house. What I like about this detector is the directions have great specifics for set up to avoid false positives and a freak out. Yeah, I did. It was scary. Thank goodness the two times it was for real we were safe. Though at that time we didnât have a level readout. Thatâs what makes this gem such a peace. Not sure how long the sale is for. But the singles are a great price now. Hope you score a savings, too. Hope I never hear these defectors go off. But I feel save knowing new ones are in place every ten or less years, if your renovating, where to restock đ
Top critical review
16 people found this helpful
My testing says-It seems to work but a little slow on alarming
By AEinstein on Reviewed in the United States on February 29, 2024
This review is for a Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup. The door covering the battery is difficult to remove. There are no instructions about installing the battery. Looking at the back it appears the cover can just be slid off, but it requires a screwdriver flat tool to pop it off. I never âtrustâ a âlife savingâ device without first testing it. The push button test is nothing but an alarm test. I tested the Kidde alongside a battery powered less expensive Awatin CO alarm. I ran gasoline vehicles in an enclosed area to build up CO. I brought the Kidde and a battery powered Awatin in for testing. The Awatin alarm went off for quite a long time but not a peep out of the Kidde. So I pushed the button on the Kidde to see what level of CO it sensed. The Kidde indicated a 329 (and silent) while the Awatin said 213 (beeping all the time.) After the Kidde went over 600 it sounded an alarm. Then I took both out in fresh air to clear the alarms and brought them back into the test area. Once again the Awatin sounded first. The Kidde sounded sooner than last time, somewhere between 250-350. I suppose a âslower- response time means less false alarms. I personally prefer a faster response time ** From the Kidde website Carbon Monoxide Level Alarm Response Time 40 PPM 10 hours 50 PPM 8 hours 70 PPM 1 to 4 hours 150 PPM 10 to 50 minutes 400 PPM 4 to 15 minutes Carbon Monoxide Levels and Their Symptoms 200 PPM Slight headache, fatigue, dizziness, and nausea after two to three hours. 400 PPM Frontal headaches with one to two hours. Life threatening after three hours. 800 PPM Dizziness, nausea, and convulsions within 45 minutes. Unconsciousness within two hours. Death within two to three hours.
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Big improvement đ
By #AskMissPatience - Reviewed in the United States on February 7, 2025
Verified Amazon Purchase
Upon recommendation for ability, and the fact our current CO detector is pushing seven during renovations. It attaches to the ceiling. Figured replacement early based on quality of function for new device and huge savings to buy two as singles if worth it. As vintage ceiling tile are being installed and this device is flexible as to where it sets up. Can be plugged in with the back up battery or wall mounted with battery alone. Although itâs a bit large has a keen sense of detection. Thereâs no price or device size that matters with safety. But if ya can score a discount kudos. No matter what detector you buy make sure it has a digital read on how much CO2 is invading when it does. To know whatâs safe ⌠0 đ all seriousness, under 30. The booklet explains the levels. How the device will function in a warning situation. Symptoms o look out for. How long itâll take to read CO2 depending on how severe it is. Itâs recommended to take one on trips when staying at hotels and this detector is easy to set up anywhere. The two pronged action is helpful since this vintage house has a mix of two and three. But for a trip the 9 volt battery is good to go. For RVers this is a must have. Even in a van camping. Better to be safe than sorry. Tip: Write the date of install in permanent marker on the face. This way no need to remember. Tip 2: Same with smoke and fire detectors. For those , what I do is write the yr and month the battery is changed every time. Thin permanent marker should leave plenty of room. Unless hardwired and in ten you just emplacements it. Still, add the date of install. Same with fire extinguishers. Doesnât hurt to have the fire department inspect it periodically. I know people whoâve lost their hem to fire. Not fun. I know people, like myself, a CO detector got us outta the house. What I like about this detector is the directions have great specifics for set up to avoid false positives and a freak out. Yeah, I did. It was scary. Thank goodness the two times it was for real we were safe. Though at that time we didnât have a level readout. Thatâs what makes this gem such a peace. Not sure how long the sale is for. But the singles are a great price now. Hope you score a savings, too. Hope I never hear these defectors go off. But I feel save knowing new ones are in place every ten or less years, if your renovating, where to restock đ
This product saved my life.
By David Carson - Reviewed in the United States on April 23, 2025
Verified Amazon Purchase
I don't know why I haven't left review before then I kept putting it off.. This thing saved me and my brother's life 2 years ago.. We had a house fire in our smoke alarms weren't working... The fire happened more about the sleep in the middle of night.. Just months before I installed one of these in each of our bedrooms.. It woke me up in the middle of the night from the smoke and I was able to get me and my brother out to safety.. The actual alarm ended up getting melted of course but it than me..
Saved our lives!
By Dawn - Reviewed in the United States on May 17, 2025
Verified Amazon Purchase
I highly recommend this unit. It saved my family when my furnace went out and filled the house with Carbon Monoxide.
Battery dead.
By Amazon Customer - Reviewed in the United States on May 25, 2025
Verified Amazon Purchase
Looking forward to the protection the KN=COPP-3 detector will give the family. However the battery sent with the product was bad and did not work. I replaced that battery with a new good one and all is now working properly.
10 year warranty I would recommend this item
By Binnie - Reviewed in the United States on May 5, 2025
Verified Amazon Purchase
I bought this. I hate him. It has a 10 year warranty. I would absolutely recommend this item.
Easy to use good for travel
By SG - Reviewed in the United States on May 7, 2025
Verified Amazon Purchase
Easy to use great for travel
Carbon monoxide detector.
By Kit Watson - Reviewed in the United States on April 25, 2025
Verified Amazon Purchase
Easy to install! Replaced the one I have been using for the last 25 years.
Save your own life
By Driverwild - Reviewed in the United States on January 25, 2025
Verified Amazon Purchase
Replaced the same model after a decade of good service. So I rinsed and repeated. If you donât have one in your home, donât risk your life over a few dollars. I had a potentially lethal CO leak in my furnace years ago, when I contracted a service company to do a clean out of my oil furnace. The fool cracked the gasket, apparently didnât have a replacement on the truck and just reinstalled the cracked gasket. My wife at the time had a basement office and started complaining of headaches. I went down some days later to do laundry and got lightheaded to the point of nearly passing out in just a couple of minutes. Luckily, I recognized the symptoms from being poisoned by a kerosene heater years before and called the gas company to check out my converted furnace. They freaked out over the sniffer reading. It can happen to you. Itâs happened to me three times over the last 50 years and I feel lucky to be alive. Not taking any chances here ever again; why should you?
Works as it is supposed to.
By DJ - Reviewed in the United States on June 1, 2016
Verified Amazon Purchase
Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display is a wonderful product. I had one in my new house when I brought it. But I decided to get another on a different floor just as a back up. The unit works perfectly well. There is one complaint that I have, when plugged into the outlet, it tends to come loose very easily. But since it comes with the 9V battery, I was not worried. I did get a few false alarms in the beginning but it has not been case for the past few months. Overall, I am very happy with the product. It does what is supposed to do. I had decided to buy the unit after doing very extensive review of the detectors and this one seems to get the best reviews. I would recommend this to anyone. Below is the breakdown of various descriptions and features. Provides peace of mind against the silent killer and a digital display ⢠Digital Display - Displays the level of carbon monoxide the unit is sensing. The unit updates this reading every 15 seconds. ⢠Test/Reset Button -Tests unitâs electronic circuitry and horn and resets the unit during alarm. ⢠Peak Level Button -Displays the peak CO level recorded by the alarm since it was last reset or unplugged. ⢠9V Battery Back-Up -Provides protection during a power outage. ⢠Part Number - 900-0076 Description The Kidde KN-COPP-3 AC powered, plug-in carbon monoxide alarm utilizes sophisticated electronic components and unmatched sensor technology to protect you and your family from the dangers of CO. The KN-COPP-3 includes a 9V battery backup that provides continuous monitoring of CO levels, even during power outages, when AC-only units are not providing protection. The KN-COPP-3 will detect and store measured data of concentrated CO levels as low as 11 and up to 999 PPM with its peak level memory display. This alarm gives you several mounting options, including: direct-plug, a 6â power cord or table top. Consumer Benefits The Kidde KN-COPP-3 AC powered, plug in carbon monoxide alarm provides you and your family with warning signal to protect against dangerous levels of carbon monoxide in your home. This alarm is easily installed in any of your AC wall outlets. The digital display feature allows for easy viewing of carbon monoxide levels from 30-999PPM (parts per million). The KN-COPP-3 is UL listed and offers a 10-year life and a 10-year limited warranty. Part Number (Ordering Number): 900-0076 Key Features ⢠Digital Display â Displays the level of carbon monoxide the unit is sensing. The unit updates this reading every 15 seconds. ⢠Peak Level Button â Displays the peak CO level recorded by the alarm since it was last reset or unplugged. ⢠9V Battery Backup âProvides protection during power outage. ⢠Test Button Functions ââ Tests the unit for proper operation â Resets the Carbon Monoxide alarm ⢠LED Operation â â Blinking dot in lower right corner of display denotes normal operation â Digital readout displays CO concentration in parts per million (30-900PPM) In alarm condition you will hear 4 quick beeps, 5 seconds off, repeat. Advanced Technology in an Easy-to-Install, Plug-In Design 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.
Works when delivery driver doesn't through it on the ground when delivering. Imagine that!
By GTL - Reviewed in the United States on May 18, 2025
Verified Amazon Purchase
Works will if delivery driver doesn't through your package on the ground! Sensitive electronic components and sensor unit should not be thrown in the ground upon delivery.
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