Haagise pistiku tester 12V + adapterid

>Tests indicators, brake lights, back light and rear fog light
>LED lights quickly and simply indicate malfunction
>Includes 7 pin and 13 pin socket adapters >This trailer light socket tester tests indicators, brake lights, back light and rear fog light sockets and plugs. Testing the vehicle trailer plug is simple; the 6 LEDs will light up if all of the light plugs are working correctly. When testing the vehicle socket the six LEDs correspond with cable colours, if a cable is defective the corresponding LED will light up. 7 pin and 13 pin socket adapters are included, which can also be used between a 13-pin tow vehicle and a 7-pin trailer and vice versa.