our factory has 20 years experience of producing electron passed ISO9001 our production have CE certification

DC power: power:DC9V

Static Current: <10uA

Alarm Current:<10mA

Low Voltage Alarm: 7V±0.5V

AC power: power: 110V       220V

Current:<25 mA

Alarm sonority:> 85 db (3m)

Working temperature:-10°C~50°C

Working humidity:<95%RH

CE certification

cheap smoke alarm