Digital display stores, instantly recalls and displays levels of CO detected;Battery operated no installation required;Hush button silences nuisance alarms;Test button for weekly alarm testing;Loud 85dB alarm;Low battery warning;2 x AA batteries & wall fixings included;5 year guarantee;Certified to UL 2034.

• First Alert Digital Carbon Monoxide Alarm With a 5-Year Guarantee

First Alert Digital Carbon Monoxide Alarm With a 5-Year GuaranteeFirst Alert