The VD02 Non-Contact AC Voltage Detector Pen is an essential, pocket-sized safety tool designed to detect live electrical currents without touching bare wires. Operating within a 90V to 1000V AC range, this smart tester tip lights up and sound an integrated buzzer instantly when placed near live outlets, terminal strips, or insulated cables. Featuring a durable CAT III 1000V safety rating, handy pocket clip, and a bright built-in LED flashlight, it is the perfect solution for quick electrical troubleshooting at home or on the job.