[APP Remote Control]After connecting with the ZigBee Hub, download APP "Smart Life/Tuya" on iOS and Android to add the device to detect the water level overflow. Home security in your hand all the time. [Working Principle]When the two feet of the detector was immersed by the water, the alert notifications will be pushed to your phone, be aware of water overflowing in time, reducing flooding risk. [Easy to Install]No complicated installation tools are required. The sensor can be installed with double-sided adhesive tape in just a few steps. [Excellent Design]Tiny and fashion, making your home life smart and relaxing. Low-consumption design, which can make it work long time. [Wide Application]Perfect water intrusion warning for homes, apartments(kitchen, toilet), warehouses, offices, laboratory, hotel rooms, garages, etc. Note: The smart ZigBee Tuya Water Leakage Sensor must work with Tuya gateway Hub which supports ZigBee protocol. It can't work without Tuya ZigBee intelligent gateway. Type: Water Level Alarm Power Supply: 2 x AAA 1.5V(not included) Standby Current: 15uA Alarm Current: 150mA Operating Temperature: -30℃~ 70℃ Operating Humidity: 20% ~85% colour: white Material: ABS Size: 70x25x20mm Package Contents: 3 x Water Sensor 3 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.