12V 7Pin Plug Socket Trailer Relay Tester Diesel Car Diagnostic Tools For Turn Signal Lights Fog Lamp Truck Caravan

Feature:

• 100% Brand new and high quality.

• Durable construction, high-and low-temperature resistant, acid and alkali resistant

• Compact hand held design, portable, easy to carry.

• Just plug the product in the 7 pin socket or plug of the trailer or caravan,and then press the yellow button on the side of the product

• With a 6 light LED system,

• All the LEDs light up when the wiring is good.

• Designed to indicate a failure in the wiring on both towing vehicles and trailers/caravans,etc.

Package Included:

• 1 x Plug Socket Diagnostic Tools