NF-certified smoke detector - optical sensor - 10-year warranty - 10 year lifetime

Fireangel

10 YEARS OF MAINTENANCE FREE LIFETIME - Thanks to its sealed lithium battery for life, no need for annual replacement - you are protected continuously for a decade. Sleep Easy function: cut off the low battery beep for 8 hours, so you don't disturb your sleep. REDUCE FALSE ALARNINGS: The optical sensor is designed to prevent untimely triggering associated with cooking fumes. Loud Sound Alert: 85dB power at 3m ensures audible detection even in remote rooms. Quick and easy installation: can be wall or ceiling mounted, no maintenance or complex wiring required., Weight: 0.30423792156 pounds, Manufacturer: AngelEye