2-in-1 Function: This instrument offers water leak detection and water level detection. The default mode is water leak alarm, and the two functions are easy to switch between, allowing the device to meet various usage needs. APP Remote Monitoring: This Wi-Fi water sensor connects to your mobile phone via Wi-Fi (2.4 GHz only). Monitor your home's water safety remotely and receive instant app alerts in case of a leak to help prevent further damage. Multiple Settings: This overflow alarm includes multiple functions. Set scheduled arming and disarming times based on your needs. Adjust alarm duration from 1 to 180 seconds and set the alarm volume between 0 and 100 dB. Easy Installation: Powered by 2 AAA batteries, this water leak sensor can be easily installed using the included double-sided tape. No wires, additional equipment, or hubs required. Versatile Usage: Includes an 80 cm detection cable. Ideal for homes, warehouses, basements, and continuous monitoring around sinks, water heaters, plumbing, and filtration units. Can also be used in swimming pools, bathtubs, and fish tanks for water level monitoring. Working voltage: DC3V Standby current: 180uA Alarm current: 70mA Alarm sound: 100dB (within 50cm) Battery: 2*LR03 AAA (Not included) Wi-Fi: 2.4G