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Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

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Availability: In Stock.
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Arrives Monday, Jun 9
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Features

  • Electrochemical sensor technology detects CO gas
  • Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
  • Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
  • Green LED indicates power to the smoke detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning
  • UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.

Description

The Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, model 900-0146, is a carbon monoxide detector that uses electrochemical sensor technology to detect carbon monoxide. The CO detector is powered by 2-AA alkaline batteries located in the back of the unit, providing easy installation & no wiring, plus coverage during a power failure. The alarm is conveniently designed and portable enough for travel - simply install it on a wall or place it on a tabletop. When carbon monoxide is detected, an 85-decibel alarm will sound & a red LED will flash. A green LED indicates that the alarm is receiving power. The test-hush button allows you to test the battery operations as well as temporarily silence the low battery chirp warning. Plus, peak level memory records the last time carbon monoxide was detected or when the unit was last tested. Install a smoke detector & carbon monoxide detector on every level of your home and near bedrooms to help keep your family safe from fire & poisonous gas. UL Certified with a 10-year limited manufacturer's warranty. Kidde’s KN-COPP-LPM battery- operated carbon monoxide alarm with digital display helps to provide your home with extensive protection against the dangerous threat posed by the odorless and colorless gas. With an increasing number of state and local governments passing legislation requiring CO detectors in homes, it’s never been a better time to safeguard your family against carbon monoxide exposure. KN-COPP-LPM Battery-Operated Carbon Monoxide Alarm At a Glance:Digital display allows for easy monitoring of CO levels Battery operation provides best protection during power outages Peak level memory displays the highest CO concentration since last reset Dimensions: 4.5 inches by 2.75 inches by 1.5 inches; weighs .66 pounds with batteries Five-year limited warranty Kidde's KN-COPP-LPM carbon monoxide detector is a free-standing unit, adding flexibility to placement around your home. View larger Features The KN-COPP-LPM is an essential device to help warn you and your family of dangerous carbon monoxide levels in your home. This alarm measures the exposure to carbon monoxide over time; it is designed to sound at 85 decibels at 10 feet when it detects 70 ppm (parts per million) of CO for 60 to 240 minutes, 150 ppm for 10 to 50 minutes, or 400 ppm for 4 to 15 minutes. The easily visible digital display indicates the level of CO that the unit is sensing, and it updates the status every 15 seconds for timely and accurate readings. Its free-standing design allows for attachment to a wall or placement on a counter or nightstand for convenient and comprehensive protection. The KN-COPP-LPM also includes a slide-out battery door that provides immediate access to the power source as well as a battery safeguard that makes it difficult to close the cover without batteries installed. An LED lighting system on the unit signals power levels and sourcing: the green LED will flash once every 30 seconds to indicate the alarm is operating properly when power is present, and the red LED will pulse to indicate carbon monoxide has been detected until the device is reset or the CO threat is eliminated. This device has an expected 7-year lifespan and comes equipped with a five-year manufacturer’s limited warranty. What's in the Box One Kidde KN-COPP-LPM battery-operated carbon monoxide alarm with digital display and three AA batteries. The KN-COPP-LPM features an easy-to-read digital display in front and an easy-access door to the batteries in back. (Click each to enlarge) P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm w/ Digital Display - Digital screen with large display is easy to read - Peak- level memory displays the highest CO concentration measured since the last reset - Meets the all UL requirements - Battery operated with three AA batteries included - Backed by a five-year warranty The new Kidde KN-COPP--LPM carbon monoxide alarm is the only battery-operated alarm that includes a digital display feature. This key feature adds an advanced level of protection that you have come to expect in a Kidde manufactured product. The battery operated CO alarm includes multiple mounting options, allowing installation on a wall or tabletop. This alarm has been carefully designed and tested to detect CO concentration in a residential environment. It provides continuous monitoring of CO levels, even during power outages when many CO incidents occur. The digital display feature allows for easy viewing of carbon monoxide levels from 30-999 PPM (parts per million). The KN-COPP-LPM will also detect and store concentration CO levels as low as 11 and up to 999 PPM with its peak level memory display. This alarm includes a snap-on cover that gives immediate access to the batteries and a safety feature that makes it difficult to close the cover without the batteries being installed. Updates digital reading every 15 seconds, allowing you to see if levels change. The peak level memory displays the highest CO concentration measured since the last reset. The test/reset button tests CO alarm circuit operation and allows you to immediately silence the alarm. A low battery signal alerts users when the batteries need to be replaced. Includes informative LEDs: green LED for normal operation, red LED for alarm. The alarm alerts user to replace CO alarm after 7 years of operation.Sensor: Electrochemical. See more

Brand: Kidde


Power Source: Battery Powered


Color: Detector


Product Dimensions: 1.5"D x 4.5"W x 2.75"H


Item Weight: 0.58 Pounds


Alarm: Audible


Operating Humidity: 5% to 95% relative humidity, non-condensing


Upper Temperature Rating: 37.8 Degrees Celsius


Sensor Type: Electrochemical


Global Trade Identification Number: 37


Brand: ‎Kidde


Power Source: ‎Battery Powered


Color: ‎Detector


Product Dimensions: ‎1.5"D x 4.5"W x 2.75"H


Item Weight: ‎0.58 Pounds


Alarm: ‎Audible


Operating Humidity: ‎5% to 95% relative humidity, non-condensing


Upper Temperature Rating: ‎37.8 Degrees Celsius


Sensor Type: ‎Electrochemical


Global Trade Identification Number: ‎37


Number of Items: ‎1


Manufacturer: ‎Kidde Safety


UPC: ‎785983912532 716080045267 047871088737


Part Number: ‎21008873


Item Weight: ‎9.3 ounces


Country of Origin: ‎China


Item model number: ‎KN-COPP-B-LPM


Batteries: ‎3 AA batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Size: ‎KN-COPP-B-LPM


Pattern: ‎Detector


Voltage: ‎3 Volts


Item Package Quantity: ‎1


Special Features: ‎Portable


Included Components: ‎Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPM


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Warranty Description: ‎10 Year Limited


Date First Available: May 11, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • A traditional CO Detetor
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
Like its digital display to indicate the exact CO value. It seems it is hard to test the CO sensor but only to trust its brand. Easy to install. Alarm is loud enough. Works well. The product's date of MFG is 2024 Aug 12 so it should be good for the next 9 years.
Reviewed in the United States on May 17, 2025 by darrell

  • I had to replace the original set because they were 10 years old
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
I used to work on a fire department and CO (carbon monoxide) alarms that just beeped were the bane of our existence because we often had no idea if it was a false alarm if our gas meters showed no problem. Having a detector with a digital readout removes that uncertainty. Yes, we have seen the CO level above zero because we keep one in the RV and there was a problem with the propane RV fridge. The CO level reached 79 PPM at one point. The "beep only" factory CO alarm just stayed silent. Since the first set lasted 10 years until they expired I figured it was a good idea to buy the same ones again. :) ... show more
Reviewed in the United States on April 17, 2025 by RJ

  • Reaches End of Life After 10 Years Which is Fine With Me
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
This is a great detector, easy to install. Note that after 10 years it will give an alarm, and the screen will read end for end of life. That's not because of the batteries, but the sensor. In my case the detector I ordered and installed in Feb 2015 had this alarm in Apr 2025. Fortunately I was able to slide the old detector body off its base screwed to the wall and slide the new detector body on. Only issue I had was after about 8 years it beeped which was caused by the AA alkaline batteries corroding so I had to clean the terminals with DeoxIT and install new batteries. After that no issues to end of life alarm. Looking forward to another 10 years of service from this one. ... show more
Reviewed in the United States on April 9, 2025 by nahhee

  • May not last 10 years. Check the batteries every year.
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
Placed in key spots up & downstairs. I use separate smoke alarms. One downstairs, one in hall upstairs and one each bedroom. I know over-kill. My son is a fireman! Batteries went dead in Co2 detector's in two years. Wrote when the batteries were replaced on the back cover. A hint. Used better batteries lasted 5 years then gave up the ghost. Over-all, good product but not a ten year life. Meets all local requirements. Better safe than sorry. ... show more
Reviewed in the United States on April 10, 2025 by The Bacons

  • Saved our lives
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
I bought this 10 years ago and only had to replace the batteries once. We recently had a carpet steam cleaning company working and they left our front door open for the hoses. Their truck was running outside a few feet from our front door to power the machinery and this alarm went crazy. The truck's exhaust was coming into the house. Ironically we have a First Alert CO detector low to the floor tied in to our ceiling smoke detectors and it never went off. And it is much closer to the front door! I need to call them to complain. We never smelled anything so without the Kidde who knows what would have happened. ... show more
Reviewed in the United States on March 31, 2025 by M. Stone

  • It is a must have
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
Easy installation. Works great it is a must have.
Reviewed in the United States on May 17, 2025 by Colleen H

  • A must for every home owner.
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
Easy to install and it is a quality product
Reviewed in the United States on May 18, 2025 by C. Cullum

  • Tested with CO in closed container at varying concentrations. Worked very well!
Size: KN-COPP-B-LPM Color: Detector Pattern Name: Detector
With emergency products like CO detectors, it's hard to know if they really work unless you're actually being exposed to dangerous amounts of CO. And if a CO detector doesn't work, you wouldn't know; instead, you'd just be poisoned while thinking that nothing was wrong. The only way to really find out if it works is to put it in an airtight container and generate CO. Because I like to play with dangerous chemicals at home, I decided to try this out. Adding formic acid to concentrated sulfuric acid causes the formic acid (HCOOH) to break down into CO and H2O. I got both of these chemicals for less than $10/liter apiece, plus shipping. I put some sulfuric acid into a graduated cylinder and placed it in a 1-gallon airtight plastic container. I then added small amounts of diluted formic acid and rapidly closed the container. Sure enough, it worked! It registered CO concentrations that were well within the ballpark of what I'd expect to get with the amount of formic acid I added (using the ideal gas law to figure out what the maximum CO level would be). In high concentration tests, I found that the alarm goes off within 3 minutes of hitting 500 ppm (which is dangerous but would take several hours to kill, giving plenty of time to get to fresh air). In another test, it went off after about 20 minutes of CO levels around 190 ppm, which is dangerous but not lethal. Its peak reading is in the 910-920 ppm range; it doesn't display levels higher than that. Needless to say, it goes off within a minute or two of such high CO levels and anybody who sees 900+ ppm on the display should leave their house and seek medical help immediately. It worked well in low concentration tests too. Due to some strange US regulation, it displays "0" for any reading below 30 ppm. If you press the "peak level" button, though, it will tell you what its peak reading was even if it was below 30 ppm. This works down to the 10-15 ppm range, below which you don't really have to worry about CO at all. Prolonged exposure around 50 ppm leads to an alarm after a couple of hours. Another, simpler test (which anyone with a CO detector should do to make sure it's working) is to light a candle in an enclosed container with the CO detector, then close the container. The candle will burn through the available oxygen and a fair amount of incomplete combustion (releasing CO instead of CO2) will occur as it runs out of O2. I tried this and got 96 ppm with a small candle in my gallon container; a larger candle would probably release more. I then tried it by lighting a crumpled piece of newspaper in the container and got >910 ppm, which is reasonable because paper and wood experience pyrolysis, which releases lots of CO. Combustion of small amounts of acetone (a fairly clean fuel relative to paper) resulted in 300-550 ppm depending on how hot the fire got before I put the lid on; the lower reading relative to paper helps confirm that it's reading accurately. In conclusion - this $20 detector works very well when tested with real CO. It's accurate, the alarm goes off at dangerous CO levels, it only goes off if CO levels are dangerous, and it might just save your life. ... show more
Reviewed in the United States on May 7, 2014 by Trajork

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