Use the neon voltage detector for indoor testing of grounded AC systems. A bright neon bulb lights at a successful self-test before use, and again if there is live voltage during testing. Phasing tester for detecting phase to phase voltage to test high-voltage fuses, check for correct phase connections, and to test for the absence of voltage on de-energized lines or apparatus LED lamps clearly indicate six different voltage ranges Consists of two 1092mm (43 in.) fixed-length poles with hand guards connected by a 1372mm (54 in.) insulated cable Measures voltage from 4.16 to 34.5kV Spans up to 2m (7 ft.) to connect two phases under test > Each Unit Includes 510836-1 ETEX LED Phasing Tester Steel carrying case Instructions