The Water Tank Sensor Wiring Loom 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 the cable only and is intended to be connected to existing probes already in the water tank. . The Water Tank Sensor combined with the TVMS can report up five states, depending on the number of probes: empty, one-quarter, one-half, three-quarters, and full. Up to six tanks can be monitored through the TVMS. A separate Water Tank Sensor Wiring Loom is required for each tank.. . . .