Aico smoke alarm optical mains smoke alarm cw 9v battery backup e10007
Optical mains smoke alarm cw 9v battery backup this optical smoke alarm that runs on 230v ac mains power and has a 9v alkaline battery back up capable of lasting up to 4 years in standby mode and 2 years without mains power the alarm gives a fire warning when smoke enters the alarm the alarm has a built in circuitry to aid suppression of voltage transients and rf interference to further reduce the chances of false alarms