Model : JONNESWAY ELECTRIC CIRCUIT TESTER AR030031 

Features : 

- Voltage 6-24 dcv

- 8A safety gear inside .

- The automatic power failure will start when voltage is over limit .

- This tool also can test positive and negative voltage .

- Tests continuity in switches , relays diodes & fuses and wiring harnesser .

- Polarity test cables and sockets

- Fin short circuits and bad earths fast

- Wire length : 4.5 meter