SODIAL(R) Green Auto Circuit Tester DC 6V-12V-24 Volts Voltage Gauge Test Pencil Car Test VoltMeter Light Bulb Designed for detecting faults in low tension circuits of traffic or transport machinery. It is suitable for maintenance on automobile, motorcycle, bulldozer, road roller High Safety And No Heat In Operation Innovative elastic wire with fine tensile property Compact, Light Configuration, With Holder For Ease Of Handling And Use