Indicator screwdriver, mains voltage tester 220 V with built-in resistor, plus phase tests
- Product Code: 4854 EB Indicator
- Availability: In Stock
- 1.00€
- Ex Tax: 1.00€
Indicator screwdriver, mains voltage tester 220 V with built-in resistor, plus phase tests
An indicator screwdriver (probe, tester) allows you to determine the presence of a “phase” and “zero”, find a wire break, check the operability of a circuit breaker or plug, etc.
The electric current from the surface of the conductor enters the tip of the screwdriver, then through a resistor with a nominal value of at least 0.5 mΩ (limits the current) it enters the contact of the neon lamp. The second contact of the circuit for turning on the light bulb through the contact on the handle of the screwdriver closes on the person. With this type of screwdriver, the capacitance and resistance of the human body are included in the light bulb circuit. That is, they touched the wire with a sting and a finger to the contact, if there is voltage, we see the glow of a neon light bulb. There is no contact with a person - the lamp does not glow. The disadvantage of this type of screwdriver is the high voltage indication threshold, from 60V. They are good only for determining the presence of voltage and phase.
- Material: plastic, metal
- Quantity: 1 piece
- Yellow color
Delivery Options
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