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, easy operateBuilt-in IC card, stable performance, high sensitivityApply optical smoke test roomWith buzzer, alarm independently9V battery, static current: ≤10uA, alarm current: ≤12mALow power alarmAlarm ...