YARNOW Non-Contact Voltage Detector Pen with Indicator Light and Voice Prompt, 3 Gears, Abs Material, Voltage Range 12-1000v for Electrical Testing and Circuit Inspection

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When the nearby voltage is sensed, the red indicator light flashes and emits a quick , and the tester: high voltage electric field, be careful of electric shock,electrical circuit tester pens,high voltage electrical safety tool
Tester electrician--the sensitivity is divided into 3 gears, when switching, the will give a voice prompt,voltage tester
Electrical testers--non-contact voltage detection, the tester will light up and broadcast voice prompt when detecting high voltage,electrical voltage tester pens
Line breakpoint detection: there will be no light flashing and beeping at breakpoint and voice prompt will also stop,voltage test pen,portable voltage tester
Voltage meter tester--long press bulb button to turn on indicator light positioning, room inspection is more convenient,non contacting voltage tester