ZK-103 Car Multi-functional Drive Test Pen DC6-24V Circuit Tester Type-Signal Detector the blue wire is connected

the blue wire is connected to the running lights

quick pick and place in seconds

Support two channels of audio

GPS + 7-inch capacity screen +8Gmemory+256MBRAM +FM

ZK-103 Car Multi-functional Drive Test Pen DC6-24V Circuit Tester Type-Signal Detector the blue wire is connected1. A good tool for the auto electrician and mechanic. 2. Carry out the tests on systems from 6V up to 24V quickly and efficiently. 3. Polarity test: power up components prior to fitting including cooling fan motors fuel pumps window sunroof motors relays and lamps wiper motors 4. Tests continuity in switches diodes and fuses relays wiring harnesses 5. Detect short circuits. 6. Locate bad earths quickly. 7. Fitted with a sensitive short circuit