Quickly and easily tests trailer circuits on most light/medium duty trucks and campers;Plug the tester into the trailer plug socket and activate the lights, brakes, turn signals, etc.;This tool allows one man to test trailer plug circuitry;Weatherproof

• Innovative Products Of America IPA7897 6 Round Pin Trailer Circuit Tester

Innovative Products Of America IPA7897 6 Round Pin Trailer Circuit TesterInnovative Products Of America