OPT7 7 Pin & 4 Pin Circuit Tester Adapter w/ 6 LED Indicators, 7 Way Blade to 4 Way Flat Trailer Connector w/Secure Tab for Pickup Truck Trailer Tow

OPT7 7 Pin & 4 Pin Circuit Tester Adapter w/ 6 LED Indicators, 7 Way Blade to 4 Way Flat Trailer Connector w/Secure Tab for Pickup Truck Trailer Tow

[2-IN-1 DESIGN] Combines 4-way circuit tester and 7-way trailer light tester, suitable for most trucks. [ADAPTER FUNCTIONALITY] Converts 7-pin output to 4-pin flat adapter, connecting 4-way trailer light plug. [6 LIGHT FUNCTIONS] Testing, brake lights, reverse lights, turn signals, electric trailer brakes, and 12V auxiliary power. [BRIGHT LED INDICATORS] Each function has a dedicated LED light for easy troubleshooting. [QUICK AND EASY TESTING] Simplifies testing of trailer circuits for both 4-pin and 7-blade connectors. Fully covered by our free 30-day warranty, offered only by OPT7. OPT7 7 Pin & 4 Pin Circuit Tester Adapter w/ 6 LED Indicators, 7 Way Blade to 4 Way Flat Trailer Connector w/Secure Tab for Pickup Truck Trailer Tow Hitch, 5.3" Long x 2.36" Diameter