ITEM NAME:Non Contact Voltage Tester 50-60Hz AC 12-1000V Pen Circuit Detector Tool Product Description Description: Features: 1. It can be used as a flash light torch for lighting in dark situations; 2. Made of superior engineering plastic; solid body, 2 times as hard as ordinary circuit detecting pen; 3..Smart scm system chip; sensitive sound and light alarm; NCV null line and live line detection;. Alarm way: sound and light. Alarm color: red and green. It can be used as a flash light torch for lighting in dark situations;.