Proster Non Contact Voltage Tester Pen 12-1000V + Socket Tester 48V～250V Wall AC Power Outlet Tester Adjustable Sensitivity Electrical AC Voltage Detector with LED Flashlight Alarm

【Non Contact AC Voltage Detector Pen】Accurately dual range voltage circuits tester, sensitivity adjustment: 12V～1000V(High Sensitivity)/48V～1000V(Low Sensitivity) (Switch with S Button) , Frequency: 50/60Hz.
【Easy & Safe Use】Just touch the tip to a terminal strip, outlet, or supply cord without touching the source; AC Voltage Detector has sound and LED light flash - 2 alarm modes.
【Live/Null Wire Distinguish & NCV Sensitivity】Automatically distinguish the Zero line and Fire line with sound (high, medium,low) and LED light. Auto selection of 3 kinds of sensitivity (high/medium/low).
【Versatile Socket Tester】48V～250V/45～65Hz, GFCI Test＞5mA (US Plug), GFCI Working Voltage: 110V±20, to detect faulting wiring in 3 wire receptacles for 5 wiring faults.
【8-level LED Indicator Modes】8 LED Indicate Condition of the Socket's wiring: Correct connection, Open Ground, Open Neutral, Open Live, LIVE/GRD REVERSE, LIVE/NEU REVERSE, live/GRD REVERSE, MISSING GRD.

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