The Water Tank Sensor Kit allows the RedVision Total Vehicle Management System (TVMS) distribution box to measure the water level in an RV/motor home clean water tank. The kit includes cable, sensor probes and crimp lugs.. -5m (16’5”) Wiring Loom. -5X Crimp Lugs. -5x Screw-in Water Level Sensor Probes. The Water Tank Sensor combined with the TVMS can report five states: empty, one-quarter, one-half, three-quarters, and full. The Water Tank Sensor Kit includes all parts needed to accurately measure the clean water levels in an RV/motorhome. Up to six tanks can be monitored through the TVMS. A separate Water Tank Sensor Kit is required for each tank..