◆Installation: Ceilling-mounted;
◆Power: 6F22 battery 9V;
◆Battery Life: Standby around 1 year;
◆Detecting Area: 60㎡;
◆Alarm Indicator: Red LED;
◆Operation Temp: –10°C to +50°C;
◆Woking standalone, no need connect to alarm panel;
◆Batteries & Screws included;