12V 7-Way Blade Trailer Light Wiring Circuit Tester Round Adapter 7 Pin US Plug Signal Tester, Signal Tester

Features:
1. Compatible with standard 7-way blade trailer sockets.
2. LED indicator for circuit continuity tests.
3. Plug and Play easy installation.
4. Compact and small - easy to put away.
Specification:
1. 7 WAY TESTER
2. Material:Plastic
3. Voltage: 12V
4. Pin:7
Instruction:
1. Plug the tester into the mating plug of vehicle.
2. Perform a function test for each circuit.