The Milwaukee Dual Range Non-Contact Voltage Detector w/ LED is designed to identify voltage anywhere live electricity is present and features a bright, independently operable work light. The expanded sensitivity range offers the ability to detect voltage in common systems that would normally go undetected when using a standard voltage detector. The Dual Range Voltage Detector detects and automatically differentiates low voltage, 12-49V, from higher voltage, 50- 1000V, when in low voltage detection mode. The Voltage Detector provides a yellow indicator when low voltage is detected and a red indicator when high voltage is detected. Voltage is detected between 50V and 1000V and has an industry-leading safety rating of CAT IV 1000V.