The Milwaukee Dual Range Non-Contact Voltage Detector is designed to identify voltage anywhere live electricity is present. 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.