Fielect 3Pcs Digital Voltage Tester Pen Review

【Parameter】- Test Voltage: 12-220V; Circuit Type: AC/DC; Display Mode: LED light + Display ; Test Head Type: Flat head. 【Quality Material】- This DC voltage tester is made of high quality plastic, insulating, sturdy and durable. 【Function】- Voltage tester provides contact detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires. 【How to Use】- When you use the voltage test electroprobe,before testing,it is necessary to insert the screwdriver to the bottom,hold the finger against the end of the handle.The neon tube turns light when there is electricity and operate safely. 【Two Usage】- Voltage tester screwdriver pen has two kinds of applications,one for measuring circuit electrical penand the other for screwdriver. You can use it to directly test voltage as a voltage tester pen, you also can use it as a screwdriver.