2-in-1 Function This instrument has the function of water leak detection and water level detection. The default is the water leak alarm mode, the two functions are easy to switch between, this water alarm can meet your needs for different usage scenarios. APP Remote MonitoringThis wifi water sensor can be connected to your mobile phone via WiFi (2.4G only). You can monitor the water safety of your home at any time when you are away. If there is a water leak, you will be alerted via the APP to reduce the risk of further damage. Multiple SettingsThis overflow alarm has multiple functions. Timed arming and disarming, you can set the time period for monitoring according to your needs. Alarm time setting, the alarm time can be set to 1-180s. alarm volume setting, the alarm volume can be set to 0-100dB. Easy InstallationThe water leak sensor is powered by 2 AAA batteries, simply use the double sided tape provided to securely install the Wi-Fi water leak detector anywhere you want. No messy wires, extra equipment or hubs required. Versatile UsageThis water leak detection comes with an 80cm detection cable. Ideal for homes, warehouses, basements, continuous monitoring of leaks around sinks, water heaters, plumbing and filtration units. It can also be installed in swimming pools, bathtubs and fish tanks to monitor water levels. Working voltage: DC3V Standby current: 180uA Alarm current: 70mA Alarm sound: 100dB (within 50cm) Battery: 2*LR03 AAA (Not included) WiFi: 2.4G.Items from Sheng Xinshun's shop