Smoke alarm detector with CE smoke detector, fire detector, fire alarm high quality ,long life,favorable price Smoke alarm detector with CE certification ,Test function & Low voltage alarm functionFeatures: 1) Power source ... AC 220V 2) Working current: : Surveillant current<15?, alarm current: <30mA 3) Alarm sound: >85dB 4) Ambient temperature: -10 ~ 50 centigrade 5) Low ...