... .9V battery, static current: aa10uA, alarm current: aa12mA 2.Low power alarm CE Approved Battery Operated Photoelectric Smoke Alarm Detector Standalone surface mounted, easy ... card, stable performance, high sensitivityApply optical smoke test roomWith buzzer, alarm independently9V battery, static current: ≤10uA, alarm current: ≤12mALow power alarmAlarm volume: ≥85dBTemperature ...