SUNSKY ZK-103 Car Multi-functional Drive Test Pen DC6-24V Circuit Tester

A good tool for the auto electrician and mechanic.

Carry out the tests on systems from 6V up to 24V quickly and efficiently.

Polarity test: power up components prior to fitting including cooling fan motors / fuel pumps / window/sunroof motors / relays and lamps / wiper motors

Tests continuity in switches / diodes and fuses / relays / wiring harnesses

Detect short circuits.