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By certification 
Intelligent water leak sensor
Product Type: S-W
Wireless operating frequency: within 1GHz
Power supply: 12V DC
Operating temperature: -10 ~ 50
Life: 5 years
Size: 37mm * 48.6mm * 30.6mm
433MHZ wireless water leak sensor,detector for B20 protocol alarm system, it is the most useful detector in the market. Can transmit alarm signal to users terminal devices directly, with the mechanical valve, user can remote control the water valve off after receiving alarm information,
