This tester has one side to connect the 7-pins plug of a trailer and another side to connect the 7-pins socket of a car. This tester indicates quickly if a failure concerns the wiring of the car or the wiring of the trailer.

Features:
Can effectively test what the problem is for 7 pins plug and socket connection.
Carefully selected materials, frosted surface.
Cross slotted Copper needles, cooperate with the female pin.
The cross slotted of size is easier to control. (The size of the a slotted is not stable)
Safe and dependable performance, reasonable design, deft appearance, convenient usage.

Specifications:
Main material: ABS + Copper
Color: black
bat-tery: 9V (not included)
Item size: 190 * 40 * 40mm / 7.5 * 1.6 * 1.6in
Item weight: 150g / 5.3ounce
Package Size: 200 * 55 * 45mm / 7.9 * 2.2 * 1.8in
Package Weight: 162g / 5.7ounce

Package list:
1 * 7-Pin Trailer Tester Tool