independent smoke detector 1.9V battery, static current: aa10uA, alarm current: aa12mA 2.Low power alarm Ceiling mounted independent smoke detector with 9V battery Standalone surface mounted, ... battery, static current: ≤10uA, alarm current: ≤12mALow power alarmAlarm volume: ≥85dBTemperature range: -10~50°CHumidity: ≤95%RHSize: Φ107×34MM Ceiling mounted independent smoke detector with 9V battery ...