1、It can work alone, support local alarm or can be equipped with wireless host. Installation by double-side adhesive, easier and convenient to install. 2、433MHz frequency, wireless transmission is more than or equal to 100 meters in open place. 3、When the two feet of the detector was immersed by the water, it will give flash with 85db alarm sound and send alarm message to the alarm host. 4、Excellent design, tiny and . Low-consumption design, which can make it work long time. 5、Ideal water intrusion warning for homes, apartments (kitchen, toilet), warehouses, offices, laboratory, hotel rooms, garages, etc. Features: It can work alone, support local alarm or can be equipped with wireless host. Installation by double-side adhesive, easier and convenient to install. 433MHz frequency, wireless transmission is more than or equal to 100 meters in open place. When the two feet of the detector was immersed by the water, it will give flash with 85db alarm sound and send alarm message to the alarm host. Excellent design, tiny and . Low-consumption design, which can make it work long time. Ideal water intrusion warning for homes, apartments (kitchen, toilet), warehouses, offices, laboratory, hotel rooms, garages, etc. Specifications: Type: Water Level Alarm Frequency: 433MHz Emission Protocol: 1527 Working Voltage: DC 3V Battery Type: 2*AAA 1.5V (NOT included) Static Current: ≤20uA Alarm Current: ≤40mA Transmission Distance: 100m (in the open area) Responding Time: ≤10s Device Wire Length: 110cm Alarm Sound: 85dB Working Environment Temperature: -10℃~60℃ Operation Humidity: <80% Item Size: Approx. 9.7*4.5*2.3cm/3.81*1.77*0.90in Item Weight: Approx. 74g/2.6oz Package Size: Approx. 10*4.8*4cm/4*1.9*1.6in Package Weight: Approx. 87g/3.1oz Package List: 1 * Water Instruction Sensor 1 * Mounting Sticker 1 * User Manual (English) 1 * Water Instruction Sensor 1 * Mounting Sticker 1 * User Manual (English)