Wired/Wireless Smoke Sensor ALN-Y522/Y52W

wired/wireless smoke sensor

1.The volume: 80dD

2.Battery life

Carbon- zinc batteries:about 1 year

Alkaline batteries:about 3 years

3.Output form:Sound alarming 

Model code	ALN-Y522/ALN-Y52W
Power supply	DC9V
Operating   temperature	-25℃~+55℃
Relative humidity	95% RH