SaiDian 2Pcs Circuit Tester Pen Voltage Tester Screwdriver 75-250V Voltage Detector Pen Electrical Test Screwdriver

Test voltage: 75-250V; Display mode: neon tube; Test head type: Probe；Length of pen head: 17mm; Total length: 138mm; Handle width: 14mm This DC voltage tester is made of plastic, insulated and durable,and It is waterproof Voltage tester Screwdriver pens are used in two ways, one for screwdrivers and the other for measuring circuits. You can use it as a voltage tester to test voltages directly, or you can use it as a screwdriver When you use a voltage test electrical probe, you must insert a screwdriver into the bottom and place your finger on the end of the handle before testing. Neon lights are bright when there is electricity, and they are safe to operate Designed for detection of standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires. Also excellent for detection voltage in security, entertainment, communications, environmental control, and irrigation systems