The Kidde Nighthawk KN-COPP-B 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-B 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:
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-B
Power supply The power source of the model. Some have backup batteries (indicated by BB).
Power supply
Battery
Peak memory Indicates whether a model shows peak levels that have occurred.
I am much happier with the Kidde carbon monoxide detector than I was with my First Alert detector. I mounted the First Alert unit to my ceiling, and to my dismay, the sensor packs for these were discontinued! I am much happier with the Kidde brand, and have read many reviews that Kidde products are more reliable. First Alert should be more customer focused and not make products and then leave customers hanging out to dry.
LOUD ALARM, FEEL SAFE AT HOME IF ELECTRIC FAILS BATTERY BACKUP WORKS, WONDERFUL ITEM. USING IT AT A NEW 2 FAMILY HOME. HIGHLY RECOMMENDED. WILL MAKE FUTURE PURCHASE. THANK YOU
.keeps going off beeping with new battery. reset the alarm within thirty (30 min.) it goes off cannot find any instructions to correct the problem. keep changing the batteris does not help the problem