RV Protocol Trailer Light and Electric Brake System Tester
RVCHECK - Square Wheel Industries, Inc. (TrailerTester)
The RVCHECK is a fast, easy, low-cost way to test RV lighting and electric braking systems. In addition to powering an RV trailer's lighting circuits for easy checking, your RVCHECK measures the current draw of the electric brake coils, and checks the break-away battery circuit.