Features: 1.The water sensor can detect water leaks or violations of preset limits. It uses Wifi to connect to the application and can be controlled remotely. 2.When the water detector detects a leak, it will sound an alarm within 1 second and send an alarm signal to the smartphone within 2?10 seconds. 3.It can be used to monitor water leakage in washing machine room/kitchen/basement/aquarium etc. 4.It can also be used to monitor the preset water level limit of the bathtub/swimming pool, etc., 100dB alarm sound, 24 hours to protect your safety. 5.Simple steps, just connect to home Wifi (only applicable to 2.4G Wifi), when you work or travel, travel, etc., you can receive alerts and track the activities of wireless sensors. Specification: Item Type: Water Leak Sensor_x000D_ Material: ABS_x000D_ Buzzer Decibel: 70+DB_x000D_ Radio Frequency: 2.4GHz-2.484GHz_x000D_ Battery Model: AAA batteryx2 (delivered without battery) PackageList: 1 x Sensor 1 x Manual 2 x Screw 1 x Sticker