https://www. imoulife. com/eu/product/specs/imou-home-security- system Water leak sensor can be used to detect water immersion conditions within the environment. Sends an alarm message to the gateway when water overflows the sensor probe poles. The gateway generates local alarms and pushes them to the user APP. Wireless protocol: Zigbee Transmit power: ≤15dBm Working voltage: DC 3V Standby current: ≤10uA Detection mode: water sensor probe Battery life: >1 year(20 times/day) Transmit frequency: 2.4GHz Communication distance: 200m Low pressure alarm : 2.6±0.2V Working current: ≤30mA Operatign temperature: -14?to+131? Appearance size : Φ50x18mm