Milwaukee Voltage Detector with LED. The Milwaukee voltage detector with LED is used for residential, commercial and industrial applications. Can detect between 50 and 1000V AC and has an industry leading safety rating of cat IV 1000V. With a built in bright LED work light, it is two tools in one. The durable tip allows for easy checking of power outlets. Designed with a green power on indicator light so you know the voltage detector is working properly before use.