Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display
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Tools and Hardware Reviews of Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display
Customer Review: A necessary tool
Summary: 4 Stars
A home CO monitor is a safety necessity in every home with combustion sources, whether it be a furnace, water heater, fireplace, gas range, gas clothes dryer, even an attached garage. The Kidde Nighthawk makes it easy- put in a 9V backup battery and plug into the wall. My last Kidde died an early death (4 years) and kept complaing that the "battery was low", even after I put in new ones. Those loud chirps at 2 AM were really annoying. If the new one goes 5 years without doing that, I'll be OK with it.Customer Review: Absolutely *eats* batteries - why?
Summary: 1 Stars
.. we had two of these things supplied by our housebuilder. The first one I gave up after it consumed a 9 volt battery roughly every 2-3 weeks, and the second/final one I've pretty much had enough of now after it too has decided that no battery will last more than 3 weeks tops. I swear, what's the point in these things being plugged into the mains if they constantly require new 9 volt batterys ? My mains supply is fine, no blackouts/brownouts, every other device plugged in is fine and never loses power ( no clock resets etc ), but these 'Nighthawk' alarms are rubbish - the 9v battery should ONLY be used when the power is out, not being drained all the time. No idea if the alarm is any good, we're lucky enough to have never had a CO problem, but the amount of money spent on batteries is nuts, and if they can't get that right then TBH I don't trust the alarm much either. No way to test other than pressing the 'test' button, which might just as well be called "make a beep". Sorry, avoid this POS until they fix it to work properly. The low-battery screech in the middle of the night is so super-loud that once the 9v battery goes (again) you'll end up just unplugging the thing to get a night's sleep, and after that why evern bother having it?Customer Review: Already owned one, bought this for college apartment
Summary: 5 Stars
We already have this product in our home (9 years). I purchased another one for my child's off-campus college apartment.Customer Review: An Excellent Alarm providing great feeling of safety
Summary: 5 Stars
This alarm seems to be everything it claims to be. Initially plugged it in my garage until I brought it inside. The alarm went off when the garage door was closed too soon after our car was pulled out. I bought this before I read a great review on this product in Consumers Reports. This is a great productCustomer Review: Annoying product poorly designed product.
Summary: 1 Stars
This awful product was installed in a rental unit I was staying in. Although the unit was plugged into the wall with plenty of power, when the battery went low at 3am, it decided I needed to be woken up to change the backup battery. Now it doesn't make a obvious distinction between "you're dying" and "you need to replace the battery". So, I was completely freaking out at first. It starts chirping LOUDLY ever 15 seconds. Why not an obvious message indicating a dead battery instead of a "." and small print on the side explaining you need to count for 15 seconds for dead battery or 30 seconds for malfunctioning? I had to unplug the device to get back to sleep. So, then I had no functioning CO detector until I could replace the battery. A way to mute the alarm for awhile (24 hours?) that would have allowed me to leave the device on, would make more sense. The worse part is, the 9v battery was still very strong. Apparently the device needs the battery to have at most of it's charge or it wont let you sleep. Talk about wasteful They actually document that you should check the battery every month! Who is going to remember to do that? The backup battery in the CO detector I have in my primary residences lasts for years and only needs to be tested once a year. Considering how poorly designed the battery circuit is, I wouldn't trust the engineers to have actually gotten the CO sensor part correct. Don't use this annoying product even if somebody give you one for free. It worse then useless and you will be spending a lot on batteries.