Flood and Water Sensor Signal Booster Inc reases Ra nge of Radio Signals MADE IN USA, this signal booster for the WaterCop (not included) makes certain your larger home or larger business is protected from water damage when water sensors or freeze sensors signal your WaterCop automatic water valve shut off device. Add the sensor signal repeater WHX1 to boost strength of radio signals from Water Hounds and Freeze Hounds to the Water Cop Actuator. Use in situations where the distance is great from the WaterCop moisture sensors or low temperature sensors to the actuators. AC power adapter is included. Picture shown is the WaterCop device (not included).