Applicable life scenarios: There are always some unexpected accidents in life, stop water and forget to turn off the faucet/children plaving with water bursting of water pipes/leaking fish tanks / leaking kitchen/pets playing with water . When you buy and install this leak-proof device: when the alarm overflow, it reacts quickly, the alarm flashes and the phone receives an APP push reminder to let you know in time and take corresponding measures. After the water has returned, the alarm will be released synchronously. Long standby time, more worry-free: low power consumption, standby for up to 1 year, no need to replace the battery frequently, when the battery is low the APP push notification, please replace the battery in time. Noted: Zigbee water sensor requires a Zigbee Gateway Hub. (Users should choose a smart life gateway before choose such zigbee version) Product parameters: APP name: Tuya Smart or Smart Life Standard: Zigbee Housing Material: ABS Battery type: AAA1.5V x 2 (Not include battery) Low-battery remind function Dimension: 70 x 25 x 20mm Wire Length: 1m (probe cable) color: White Material: ABS Package Contents: 1 x Water Leak Detector (Not include battery) 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.