Coolseer Smoke sensor can sense smoke that comes into the sensor chamber. When the smoke detector detects a certaindensity of smoke, the horn in the smoke detector will sound and in the meantime the detector senda notification report to mobile, and if there have some devices such as a siren that associated, the detector will send an controlling command to them and control their states.
2.Battery: DC3V LR03
4.Low voltage and under-voltage:≤2.4V
6.Sound intensity:80 dB
7.Product size(L*W*H): ø80*38mm