Tecwerk Voltage tester 12-1000 V AC

Phase and cable break tester Non-contact testing. Detects alternating voltages without current flow. For detecting cable breaks and defective fuses, checking defective switches, sockets, transformers, e.g. low-voltage lighting systems, and string lights. Detects phase conductors in single-phase and three-phase networks. Tests the function of circuit breakers. Detects live cables in distribution boxes