Electric Tester Screwdriver

An Electric Tester Screwdriver, also known as a Voltage Tester Screwdriver, is a small hand tool used to check the presence of electrical voltage in wires, sockets, and circuits. It typically has a transparent handle with a built-in neon bulb or LED that lights up when voltage is detected. The metal tip is placed on the electrical contact, while the user touches a metal plate on the handle to complete the circuit. It is commonly used for basic electrical troubleshooting and safety checks.