Ultrasonic Water Tank Level Meter w/ Thermo SensorNo need to keep constantly checking your water tank! The wireless water tank sensor for DigiTech lets you monitor your water tank remotely. This time saving device sits at the top of your water tank in the garage or wherever it's located. It takes digital readings of the water level and will alert you if the water gets too high or too low. The Wireless water tank sensor transmits data wirelessly between the sensor and the digital monitor from up to