Haagise pistiku tester 12V 7pin + adapterid

Easily identify problems related to improper, malfunctioning of trailer lighting
If any of the indicator lamps do not light up, it means that the cable in question is damaged
Stop light - red
Left turn signal - yellow
Rear fog light or 12V - blue color
Left rear light - black color
Grounding - white color
Right turn signal - green
Right rear light - brown
Set includes: socket tester, adapter 13/7, adapter 7/13

Battery 9V (not included)