Voltage Tester Detector Pen with LED AC-12V-1000V Detect AC Voltage – Helps to distinguish the earth wire and live wire of 12-1000V AC power supplier and alerts you of the high intense radiation from powered home appliances Non-contact CAT III voltage tester gives you a warning red light and beep sound when the high voltage or intense electric radiation is detected Electric tester pen will automatically shut down within 5 minutes if there is no operation Lightweight and convenient pocket clip makes the voltage detector an ideal electrical tester tool for electricians or daily-use safety tool
