Kidde KN-COB-B-LP Nighthawk Carbon Monoxide Alarm, Battery Operated – 21007268

Price: GBP20.92
(as of Jul 23, 2026 01:28:30 UTC – Details)


B/O CO Alarm
Battery operated (three AAs included) to provide protection during power outages
Test-reset button tests the unit for proper operation and resets the carbon monoxide alarm
Forty percent longer life than other CO alarms
Seven-year end-of-life warning alerts user to replace CO alarm
Meets the requirements of Underwriters Laboratories (UL)
Customers find the carbon monoxide alarm easy to install and reliable, with one mentioning the test button works well. The device is compact and durable, lasting for years, and one customer notes it’s rated up to 10 years. Customers appreciate its good value, with one highlighting it as an inexpensive fix for California, and they like its battery life, with one noting it comes with the necessary batteries.