2pcs Voltage Tester Electric Detector Screwdriver Tester Pen With Neon Tube

The voltage tester is mainly used to detect cables, wires, circuit breakers, light fixtures, switches, etc. The pen body contains a neon tube, to determine if the neon light is shining to measure the project situation. Slotted and Phillips screwdrivers can be used for both screwdriver and electric test pen. This voltage tester can be used to test whether the element is energized or to distinguish between neutral wire and ground wire. The thumb, middle finger, ring finger and little finger simultaneously hold the insulating part of the test pen, the index finger touches the metal cap on the top of the test pen, and the metal part of the pen tip contacts the article. be tested. When using the test pen, the neon tube should be backlit so that the red light emitted during measurement is clearly visible in time.