The voltage tester is mainly used to detect cables, wires, circuit breakers, lighting fixtures, switches, etc. The pen body contains a neon tube, to determine whether the neon light glow to measure the project situation.
The tester pen provides here is in the size of: Measuring Range: AC 150-500V; Overall Length: 125mm(4.92 inch); Diameter: 16mm(0.63 inch); Tip Wide: 3mm(0.12 inch); Metal Rod Length: 28mm(1.1 inch); In the package of: 4 x Voltage Tester
Slotted screwdriver type can be used for both screwdriver and electric test pen. Comes with a clip that can be clipped in your pocket or on your belt to make your work more convenient. This voltage tester can be used to test whether the item is live or to distinguish between neutral wire and earth wire.
The thumb, middle finger, ring finger and little finger hold the insulating part of the test pen at the same time, the index finger touches the metal cap on the top of the test pen, and the metal part of the pen tip contacts the item to be tested.
When using the tester pen, you must be in contact with the metal at the top of it, and not the metal rod. When using the test pen, the neon tube should be backlit so that the red light emitted during the measurement can be clearly seen in time.
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