331072 DETECTOR SMOKE LITHIUM BATERY, 100MM DIA X 44MMTHICK

A device for detecting smoke emerged by potential fire, and raising an alarm and flickering LED light to alert. Normally the smoke detectors are mounted on the ceiling or on a wall near the ceiling. The detector is powered by lithium battery and which life lasts for about 10 years, but depends on environmental condition where it is mounted. A little blip and indicator light notify you the end of battery lifetime.