Kidde Nighthawk Plug In Carbon Monoxide Alarm with Battery Backup and Digital Display #KN COPP 3

Customer Reviews

Versitile CO detector

2008-04-29
The combination of AC power with battery back up is nice. It is a good value for the money.

Not good

2008-04-19
This product is el junko. Even while left plugged in batteries are constantly run dry. Also after about 6 months or so, it just goes bad and starts chirping for who know why. I've had 2 of these....problems with both.

Consumer Reports Best Buy

2008-03-31
You have the choice of battery or plug-in. I thought I would just forget about the battery but it will alarm until you put one in. I called Kidde and they said they have a different model that would better suit my preference.

Tough to review

2008-03-15
This is a tough product to review. You hope it never has to work. I plugged it in and tested it as described in the owners manual. It works. I like that the plug ( power supply ) separates from the unit so you can mount it away from a power outlet if you desire.

Peace of Mind with a Superior Product

2008-02-08
-- I purchased 2 of these plug-in CO2 detectors, so that I'd have one for each floor of my house. They were RECOMMENDED by my local FIRE DEPARTMENT who agreed that they were the most reliable product on the market. The firemen assured me that there were back-up batteries in the event of a power failure. Meanwhile, I would not have to be concerned about constantly replacing batteries.
--I had originally purchased the battery-only product. It so happened that this malfunctioned within the warranty period. Kidde impressed me with its NO-HASSLE REPLACEMENT POLICY. This further convinced me to stick with the brand. For a few dollars more, I found the plug-in to be a sturdier, potentially more reliable product.
--I was also advised that it is best to place CO detectors toward the floor. Since my outlets are about 4 inches above the baseboard, the plug-ins work well. Also, I think that the DIGITAL is a bit LARGER on this model and certainly easier to read.
--In the event that there is a leak of carbon monoxide, it is helpful to have MUTLTIPLE UNITS so that technicians can faster determine the source.
-- Since I have 3 gas fireplaces and 2 gas furnaces (one above my bed), I am very concerned about this issue. I can relax now that I can see the blinking "0" which assures me that the air is monitored every 4 minutes. Wonderful peace of mind at such a reasonable cost!

Excellent carbon monoxide detector

2008-07-07
We bought this particular detector because they are used where my husband works. He works in a warehouse where propane forklifts run all day, all seasons of the year, and Kidde is the brand they use. They work quite well there, so we figured they should work equally as well in our home. It does. I especially like the ability to place it directly in the electrical outlet or to hang it on the wall above the outlet, or place it on a shelf near an outlet. The battery back-up is another plus, as we sometimes lose power during storms.

started going off on On GAS at all hours

2008-06-05
after having this a year it started going off on On GAS at all hours "ALSO AT NIGHT TOO WHICH IS VERY SHOCKING" has my house checked, no gas present.

Great product

2008-06-01
I've had one of these for 4 years and it been great. This one is replacing one by a different manufacturer that just went bad.

False Alarms

2008-05-31
This is the third Kidde Nighthawk that we've owned and all have exhibited the same behavior - after a little more than a year they produce a false alarm in the dead of night. How do we know the alarms are false? First, the alarm isn't continuous. The unit sounds long enough to get us out of bed and get our hearts pounding and then stops. Second, the display reads 0 ppm CO. Third, when we check the peak level of CO it is always below the threshold level where CO would be a concern. I have tried replacing the battery even though "LB" is not displayed. The result is the same behavior and frustration a week or two later. Our first two units were the combined CO and explosive gases units which others have noted are problematic. However, we have had the same problem with this unit (CO only). Interestingly, the alarm usually sounds in the summer when we have the AC on, rather than when we are heating the house with natural gas. I'm wondering if others have had this problem.

Even if it were free, it would be overpriced

2008-05-02
Worthless.. After just 1.5 years displays "ERR" Customer service says it has to be replaced?!? but they won't replace it w.o. receipt despite the date of manufacture of April 2006 on the back.

This is my second Nighthawk product... my first and my last.

Wondering if I was ever protected?? Did it ever work?