Overview:The water instruction sensor can work with Sonoff RF Bridge 433, alarm system, etc.When detecting water overflow, alarm notification message will be immediately sent to the APP.Features:xCan be equipped with wireless host. Installation by double-side adhesive, easier and convenient to install.x433MHz frequency, wireless transmission is more than or equal to 200 meters in open place.xWhen the two feet of the detector was immersed by the water, it will give flash and send alarm message to the alarm host.xExcellent design, tiny and fashion. Low-consumption design, which can make it work long time.xIdeal water intrusion warning for homes, apartments(kitchen, toilet), warehouses, offices, laboratory, hotel rooms, garages, etc.Specifications:Type: Water Level AlarmFrequency: 433MHzEmission protocol: 1527Working Voltage: DC 12VBattery Type: 12V 23A(not included)Standby Current: 5uAAlarm Current: 10mATransmission Distance: 200m(in the open area)Working environment temperature: -10-60Operation humidity: Item Size: Approx. 7.8 x 3.7 x 2cm (LxWxH)Item Weight: Approx. 38g or 1.3ozPackage Information:Package Size: Approx. 9.3 x 5.6 x 3cm or 3.7 x 2.2 x 1.2inPackage Weight: Approx. 46g or 1.6oz Package List:1x Water Instruction Sensor1x Mounting Sticker