... , controlled by micro-computer to avoid false alarm, steady function;●Wireless connection,Detect water Specifications:●Operating power: 23A 12V alkaline battery ... life: ≤2year UsageWidely used in all relatived area which with water , such as swimming room, high building and so on,. ... other liquid, when water goes up to its detect limit, it will get triggered, and send signal to alarm panel. And ...