Electricians tools EF 767 Unipolar multi-function electrical tester EF767 Unipolar multi-function electrical testers intended for perfoming basic test of 230V/380V electric installations, car installations and checking operations of electrical devices. EF 767 • detection of phase/zero of alternating voltage max 500V • testing the continuity of conduction approx 1M • detection of direct voltage max 60V Application: • 230V/380V installation: • detection of direct voltage max 60V • breaks/ shortings detection, testing of fuses and light bulbs • verification of earthing • detection of wires in a group of conductors • allows to repair christmas lights without removing light bulbs DC installation: • detection of DC voltage, breaks and shortings • pole identification +/-• testing of plug supply • telephone tests Electronics: • detection of 0/1 in electronic systems • basic test of electronic elements: diode, transistors, resistors, condensers (apart from electrolyte) Cars: • detection of +12V/ground • testing of fuses, light bulbs • battery ignition setting • detection of high voltage