Description:  Wireless water leak Sensor, super loud 120dB alarm, can be heard even in the basement. When you find a leak, press the mute button (dry the probe and then press mute or the alarm will sound again after 8 seconds). With 2 sets of rear probes and 2 front probes for droppers. Put it in the kitchen sink, bathroom, basement, and leak detection by the water heater.  Features:  Ultra-loud 120 decibel alarm.  Drip alarm.  Wireless and easy to use.  Low battery alarm.  Waterproof.  Two methods of operation:  1. Wireless, used alone, with buzzer.  2. With 433 frequency and hub (Tuya gateway) connection, WIFI/RF control, support mobile App alarm notification.  Specification:  Product name: Immersion sensor.  Alarm volume: 120dB.  Power supply voltage: AAA * 2 sections of DC3V (capacity 1000mAh).  Working current: 90mA.  Quiescent current: 13uA.  Certificate: CE and RoHS.  Working frequency: 433MHz.  Weight: 94g.  Size: 11 x 4.5 x 2.7cm.  Material: ABS.  Color: White.  Package included:  1 x Wireless water leak Sensor(Not included battery)