VT4009 voltage tester is used to check the presence of voltage in the network, the tool allows you to test the electrical circuit with a supply voltage from 6V to 24V, making it particularly useful in the automotive sector. The metal enclosure provides high wear resistance and durability of the indicator. A small clip "crocodile" will connect the indicator to the "zero" or "earth" in the most remote places. For maximum convenience, VT4009 voltage tester is equipped with a metal cap that will easily carry it in your pocket. Instructions for use Remove the protective cap Connect clamp to ground or a negative terminal of the battery indicator tip touch the metal part of the test device, or pierce insulation tip If the lamp lit, the electrical circuit is not broken