Amprobe VP-440 Non-Contact VoltProbe Non-contact voltage tester for detecting A) voltage on cables, circuit breakers, wall sockets, junction boxes, and other electrical wiring Average-sensing meter helps provide accurate readings when measuring linear loads with a current or voltage that has a sinusoidal waveform Tester illuminates when AC voltage is detected Measures AC voltage from 50 to 1000V Safety rated to European Standard 61010-031 Category III 1000V