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Customer Reviews for Kidde 10-Year Worry Free Smoke & Carbon Monoxide Detector, Lithium Battery Powered with Photoelectric Sensor

Internet #203525030

Model #21029899

Store SKU #146429

  • 2-in-1 protection: combination smoke and CO alarm in 1 unit
  • 10-year, sealed lithium battery, tamper-resistant
  • Protection during power outages and no low battery chirps

Customer Reviews

  • 4.3
    out of 1,567 reviews
  • 64% recommend this product
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Showing 1-30 of 1,567 reviews
Easy to install. Nice battery is built in.
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  • Verified Purchase
This unit was easy to set up and install
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  • Verified Purchase
Waste of money
Installed 7 of these alarms and they have gone off 3 times in 3 months… always in the middle of the night! No reason at all. They tend to self reset after about three rounds of beeping. Complete waste of alot of money!!!!!
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Response from Kidde ExpertMar 11, 2024
Hello. Please call us at 1-800-880-6788 while onsite with the alarms before you replace them. We do stand behind our products and we are happy to troubleshoot and figure out what is going on and get an issue resolved. Some of your alarms may be in one the locations to avoid listed in the owner's manuals. This would especially include alarms being installed within 3 ft (.9m) of a forced air supply ducts used for heating or cooling, ceiling or whole house ventilating fans, or other high air flow areas. We recommend that alarms not be installed near vents, flues, chimneys, or fans. We recommend that alarms not be installed near doors or windows near areas directly exposed to the weather. We strongly recommend not to install these alarms in garages, attics, and crawl spaces as you will get temperatures, dust, insects, and chemicals that can cause nuisance alarms. False alarms are most commonly caused by something interfering with the sensor. To clean the alarm, hold the unit by its edge and thoroughly blow through the gap on the side of the unit with compressed air (like keyboard cleaner). We recommend cleaning out all of your smoke alarms at least every 6 months to a year and at this point we would recommend cleaning out all of your other alarms as well as a preventative. Try cleaning out the alarms. If you have the issue again, call us with that alarm in hand at 1-800-880-6788 so we can get this resolved for you.
    1 found this review helpful
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    Replaces 10-year-old version of the same detector. Had no problems with the old one, expect the same from this new one.
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    • Verified Purchase
    I had some trouble to install the bottom plate. It is hard to screw the second bolt to the outlet box. My old one has two big holes that allow the bolt head to go through. So you can loosely screw in both bolts first. Let the bolt head go through the big hole. Before tightening the bolts, you turn the plate a little bit so that the bolt head is away from the big hole. This is a better design than the product I just bought.
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    • Verified Purchase
    A 10-year battery may cause a fire if not unsealed/disengaged in a timely manner when the detector indicates a dead battery, per instructions. The detector was returned.
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    Response from Kidde ExpertMar 6, 2024
    Hello. No, the battery will not cause a fire using the alarm. The warning you are referring to is "WARNING! Failure to discharge alarm as instructed prior to disposal may create potential for lithium battery related fire or hazard" Yes, if you dispose of the alarm without discharging the battery, the battery might get damaged in the trash or cause a short from damage or contamination. This might create heat which is true for any battery or battery-operated device. Batteries should be disposed of properly to avoid battery related fire or hazard. However, if you discharge the alarm according to the instructions, this will render the alarm safe for disposal by draining the battery. There is not a risk when the battery is just being used while the alarm is properly installed.
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    So far so good. Easy to install and the ten year battery means I can forget about it. And no chirping!
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    • Verified Purchase
    Two new ones would not work! Went to a different store and brand that did work!
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    Response from Kidde ExpertMar 6, 2024
    Hello. What activates the battery is when you put the alarm onto the bracket for the first time, the bracket is supposed to hit an internal switch which turns on the battery. Sometimes you have to put the alarm onto the bracket firmly to get it to activate the battery. If you have issues with our alarms again, please call us at 1-800-880-6788 with the alarms in hand before you replace them. We do stand behind our products and we are happy to troubleshoot and figure out what is going on and get an issue resolved.
    • Verified Purchase
    1 found this review helpful
    pushed button to test and could not get it to stop beeping
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    Response from Kidde ExpertMar 6, 2024
    Hello. Before you replace the alarm, please call us at 1-800-880-6788 with the alarm in hand. We do stand behind our products and we are happy to troubleshoot and figure out what is going on and get an issue resolved.
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    Does the job with easy installation.
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    Bought to replace my last Kidde Smoke detectors which lasted for the time stated and beyond
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    A single unit, good for 10 years, complete and sealed. If I was handier installation would have been simple, but it was still manageable.
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    My 2 combo detectors pooped the bed at the same time. Bought these an of course the plates are different than the previous ones so they dont just click on. But the holes for the new ones line up kinda so was easy to put up w/o putting more holes in the ceiling. Says last 15 ueats time will tell. Batteries are lithium thought those caused fires? Who knows in this ctazy world now. Hope we never need them.
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    • Verified Purchase
    So far, no problems. It was easy to install where the old one was, though I did have to make new screw holes, but that isn't a big deal.
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    Showing 1-30 of 1,567 reviews

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