Non-Contact Voltage Detector Pen PM8908C is smart and compact pen type meter with mini size for easy carrying. It is designed according to EN61010-1-2-030, EN61010-2-033, CAT.III1000V Concerning Safety -Requirements. Range of Voltage sensitivity is from 12V to 1000VAC. Rotatable Battery Cover, Replacing the battery easier. Distinguish the Zero Line and Fire line automatically. Sound and LED alarm, The instrument uses the alarm sound of different frequency and LED lamp of different color to indicate low moderate or high sensitivity. Professional AC Voltage Detector with NCV Detection. Sound and light instructions. Auto power off. High quality and easy-to-use. Mini and compact pen, easy to carry.