Putogesafe Smoke Detector, Mini Smoke Alarm with LED Indicator & Silence Button, 10 Years Battery Operated Fire Alarm for Home, 10 Hours Not Disturb Time, Low Battery Signal, UL Listed, 1 Pack

Small but Powerful: The fire alarm is compact and only Ø27.5 * 13.5mm, and Installed on the ceiling is more elegant. It has a detection range of up to 40㎡ and can emit an alarm sound greater than 85dB at 3 meters.
10 Years of Uninterrupted Protection: The fire alarm has a built-in 10 years non-replaceable battery, eliminating the hassle of wiring installation and frequent battery changes.
Accurate & Sensitive: This smoke detector uses an advanced photoelectric sensor to accurately and quickly detect overcast fires, ensuring your family’s safety.