Finally, an easy way to read your water temperature from both indoors and outdoors. The WS-14 wireless pool and spa thermometer is waterproof and floats on the surface of the water. The sensor displays and wirelessly transmits the water temperature to the display console. The console also includes an indoor thermometer for monitoring air temperature. The 8-channel selectable switch allows you to monitor temperatures from up to eight different locations. The screw-on lid design with internal gasket provides a leak free, water resistant design. Each remote sensor includes dip switches for channel selection and units of measure (°F vs °C). Note: The F007PF is designed to float. If the F007PF is used under a cover and the sensor is constantly submerged, the additional pressure will lead to premature gasket failure. Moisture will enter the sensor compartment and cause sensor failure.