Power interface: microUSB interface Power input: DC 5V/1A Operating current: ≤80mA Reminder low battery: 3.4V ± 0.1V Standby current: ≤15uA Standby time: ≥10 months Built-in siren: ≥ 70dB Battery type: 3.7V/400mAh lithium battery Volume adjustment: adjustable (4 levels) Operating temperature: - 10°C~55°C Working humidity: 0% ~ 99% RH Product size: 87 × 35 × 14 mm Reliable performance ：When the water sensor detects water leakage or preset limit, the water detector will emit 80dB alarm tone and alarm tone within 10 seconds and alarm message will be sent to your smart phone within 2-10 seconds (depending on network speed). To avoid possible water damage. Easy to use：No gateway required, no complicated wiring required, and home WiFi can be connected in a few simple steps (2.4G WiFi only). Whether in the office or on the go, you can query the status at any time with the Tuya Smart / Smart Life app. You can also share with others, and more people can receive alerts and see the activity history of wireless sensors. Wide use：Highly sensitive probe design, more flexible installation and convenient to use. It is suitable for continuous monitoring of households, aquariums, warehouses, basements, sinks, dishwashers, washing machines, sewage pumps, water heaters, bathtubs, water pipes. water and filtering devices. Long standby time and durable. 2.4G Wi-Fi：The flood detector only supports 2.4GHz Wi-Fi. If you are using a 5G router (it offers two Wi-Fi signals: 5G and 2.4G), make sure to choose 2.4G Wi-Fi to connect to your smartphone. Delivered quantity : 1 piece