Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display
by Kidde
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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: Reliable and Simple to Use
Summary: 5 Stars
Have had this product for about 5 years. You just install the 9-Volt battery and plug it in. I like this model because it actually gives you a digital read-out so you can tell how much CO is in the air. Most importantly Kidde has an excellent reputation for quality.
When CO Detectors first came out on the market, I bought a First Alert CO Detector with no digital readout. Many of the First Alert alarms in Chicago were so sensitive they started beeping just from the CO coming indoors from cars, buses, and trucks. At first the company refused to do anything, but the mayor embarrassed them in press conferences so they agreed to replace the original models with less sensitive models.
Then my alarm (about one year old) beeped. The fire department spent a half hour at my house but could find no CO anywhere. We called First Alert, but they said that they were only replacing CO Detectors for Chicago customers. (We live in the suburbs.) Now I can understand that this brand new product needed some tweaking, but I didn't accept First Alert's refusal to stand behind its product. I have used Kidde ever since and never had a problem.
Customer Review: Works Fine for Me
Summary: 5 Stars
I bought this as a replacement for the same item which reached its 7-year end of life. I was a little hesitant because there are so many reviews with problems with false alarms. My original 7-year-old model worked just fine, never a false alarm.
I waited over 2 months to write my review to see how it would perform which is, just perfectly. I have not had a single false alarm or any problems.
The new models do tell you plainly that they will quit working 7 years after first use. It is on the packaging, it's in the manual, and it's on the device itself.
I recommend to always keep your receipt and if you think you got a lemon, contact Kidde. I really didn't see any better choice in the marketplace.
I can assure you that the false alarms and battery drain that people report have nothing to do with power outages. My previous CO alarm was used in an area that had frequent and sometimes prolonged power outages. Frankly I never even thought to change the battery more frequently than every year and the alarm functioned just fine.
Customer Review: May have saved my family from a tragedy
Summary: 5 Stars
This device detects low level CO. The reading was dead on the levels measured by our fire department. How do I know? While on a weekend trip with some of my buddies, this thing alerted my wife that there was a leak at home. She called the fire department when both of our meters, upstairs and downstairs, began to sound the alarm. When they arrived, they used a fancy detector with a probe to locate the source of the problem. The exhaust duct from our water heater in the cellar had separated at an elbow, causing the gas to leak outside of the chimney and up through the floor. The fire fighters measured the gas levels around our detectors, and the measurements were consistent, before and after they reconnected the duct. There was never any odor or sign of a problem other than our Kiddie alarms. The level of CO was over 250PPM when the fire department arrived. That is high enough to do serious harm. What a life saver! I now have a total of four detectors, and I sleep better for it.Customer Review: Works in Practice
Summary: 5 Stars
Our Viking convection oven didn't light immediately and neither my wife nor I noticed it until I went upstairs from the kitchen and saw the Kidde Nighthawk LED display rising from "0"ppm to "40", "50", "57", at which point we opened the windows, turned on the fans etc (50ppm is still considered safe by OSHA but anything over 0ppm isn't alright by me). In any case this detector was one floor up from our kitchen and still caught what was certainly a hazard. I highly recommend getting this unit, because of its LED readout. It's very useful to know what the PPM of CO detected is and you can do that with this unit. With most alarms, w/out LED readouts you have no idea if it's 50ppm or 10,000ppm (huge leak). The difference between the two readings being that you can open the windows and look for the problem in the first case where in the latter, you should head for fresh air immediately. The product works - LED readout is absolutely key.Customer Review: The best Carbon Monoxide on the market.
Summary: 5 Stars
I got this to protect my family and myself from any potential CO hazards. We have gas heat, fireplace, and stove. We had a cheaper model with those stupid cartridges. One day it went off and my wife called the police to ask what to do. Within 5 minutes, there were 3 police cars, 2 fire trucks, a rescue truck, and 20 firemen, paramedics, and police officers at the house. The neighbors all came out and the police had to direct traffic around all the vehicles parked in front of the house.It was a false alarm, the cartridge was old and became saturated with CO over a long period of time (a common problem). Worse yet, the replacement cartridge cost almost as much money as a new unit. What a waste of money.
This one has a nice digital display and doesn't need a replaceable cartridge. I bought one for my parents to.
Get a CO detectors. The added security is well worth the money.