2 PCS Magnetic Flathead Screwdriver & Non-Contact Voltage Tester Pen, Dual Color Light Electrical Screwdriver, High Torque Electricity Detector for Safe Voltage Measurement

•About this item[Parameter]- Test Voltage: 100-500V; Circuit Type: AC/DC; Display Mode: Neon Tube. [Neon Tube Light Display]- The neon tube light of the circuit pen will light when the pen detects voltage; The higher the voltage, the brighter the neon tube light. [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]- Two kinds of applications,one for measuring circuit electrical penand the other for screwdriver. Two types of screwdriver tips on the both end of metal rod-slotted and cross-recess. When you pull out the metal rod,please insert the rod to the deepest position to make full contact. [Warm Tips]- AC circuit tester light detector is for indoor use only and to avoid strong light.