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CO & smoke alarms

Kidde Nighthawk KN-COPP-3
Price range:
$29.99 - $81.66
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Summary: This model was tested by our experts.
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Community icon10 people have reviewed this model.
Type: Stand-alone alarms
About - Kidde Nighthawk KN-COPP-3

The Kidde Nighthawk KN-COPP-3 is part of the CO & smoke alarm test program at Consumer Reports. In our lab tests, carbon monoxide alarm models like the Nighthawk KN-COPP-3 are rated on multiple criteria, such as those listed below.

High CO levels:
High CO levels rates a model's response to CO of 300 parts per million.

Low CO levels:
Low CO levels rates a model's response to CO of 150 ppm.

Display/voice rates the accuracy of the CO level either displayed digitally or conveyed by voice message.
About This Brand

Kidde owns FireX branded units and offers the Nighthawk and Silhouette lines. Nighthawk comes in plug-in and battery operated units. Price range of carbon monoxide units is $20 to $70. The Silhouette line comes in hardwired units and features a sealed, self-charging lithium battery that lasts for the life of the unit. The units can interconnect with other units and retail for about $60. Kidde also offers combo units, which have a smoke detector feature in addition to the carbon monoxide detector.

Kidde also carries the Intelligent alarm (not tested), which uses one device to detect fast flaming and smouldering fires and carbon monoxide. A voice warning is issued based on what danger is detected. CO alarms are sold in home improvement stores, including Home Depot and Lowes,  at Sears, and at food and drug stores.

Smoke alarm prices range from $10 to $70. Kidde makes dual sensor units that use ionization and photoelectric technologies.

Features & Specs - Kidde Nighthawk KN-COPP-3
info Power supply Plug-in w/BB
info Peak memory Yes
More features and specs
User Reviews - Kidde Nighthawk KN-COPP-3
User Reviews
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(3 of 3 customers found this review helpful)
Reliable CO2 Detector
10 Year Life
10 year limited warranty
Backup Battery Protection
Bright display
Low Battery Indicator
Best Uses
I had to replace my old unit because it was at the end of its useful life, which was seven (7) years. It was manufactured in 2006 so it makes sense that in 2014 it was ready to be replaced. I see comments where people object to having to replace the unit. I recommend they read about detectors of this sort (and also smoke/fire alarm detectors) and try to understand why that is necessary before dinging the product.<br /><br />The good news? My new unit comes with a 10 year life and a 10 year limited warranty. So the company has extended the service life and warranty beyond what others are saying in previous reviews. My old unit was 7 years to replace automatically and 5 year warranty. Kudos to Kidde for extending the service life and warranty period.<br /><br />I would also like to comment on some people's complaint about the backup battery. Sorry, but just like your fire/smoke detectors, having a battery backup is extra protection for you in case of loss of power. In my case, the battery had a LONG life so not a problem to replace. I guess if you are in an area where you loose power a lot, that might be a problem but it has indicators to let you know when to replace the battery.<br /><br />Another person mentioned wearing earplugs to change the battery --- sorry, but you want this unit to be loud and if the chirping indicator bothers you, that kind of goes against its purpose which is to produce a sound that is noticeable. In 7 years, I had to endure the sound once so not sure what that complaint was about.<br /><br />The unit has a very clear readout and can easily be tested, etc. I have never experienced a CO2 problem but presume the unit is working fine.<br /><br />The range in prices mentioned by Consumer Reports is what I found when researching my purchase of the replacement unit. With the 10 year life - the protection you will receive will end up being very inexpensive over the life of the unit.<br /><br />My new unit had a sticker on it indicating it was manufactured in Feb 2014. I suppose if there are older units out there for sale, they may not include the extended life and warranty I am talking about and may still have the 7 year life cycle. There are stickers on the unit to tell you the date of manufacture and remind you of the service life.<br /><br />I highly recommend this detector.
How long have you owned it:
More than six months
Bottom Line
Yes, I would recommend this to a friend.
Unit ceases to function after seven year
Lasted For Seven Years
Best Uses
Unit ceases to function after seven year by design. The packaging states that after seven years the device will automatically alert that it is time to replace. What it actually does is deliver an error code after seven years and, per their web page, does not detect the presence of carbon monoxide when in this mode. Apparently it cannot be reset and you have no protection until you replace the unit.
How long have you owned it:
More than six months
Bottom Line
(1 of 1 customers found this review helpful)
7+ years
Battery Backup
Lengthy Warranty
Best Uses
Used this Kidde Nighthawk for just over 7 years before it Err erred out today. Kidde offers a 5 year warranty, which I think is good and this product exceeded that. Kidde also recommends you replace your CO products every 7 years. Nothing lasts forever, so this makes sense to me especially since this is a product that protects you and your family's life. Thankfully we've never had ours tell us to Get Out. I'm going to buy this same exact model today.
How long have you owned it:
More than six months
Bottom Line
Yes, I would recommend this to a friend.
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