3 PCS Voltage Tester AC 100-500V With 4X180MM

OverviewVoltage: AC 100-500V; Overall 4 Inch Screwdriver Head Width: 4 Inch; It can work as a circuit tester or a screwdriver, makes work more convenient The voltage tester pen is used for testing the circuit and distinguishing whether the object is electrified; The higher the voltage, the brighter the neon tube light How to Use: When using the voltage tester, please insert the screwdriver to the bottom, hold the insulated handle with the thumb and middle fingers, and hold the cap at the end of the voltage tester with your forefinger Note: DO NOT touch the voltage tester probe