[Upgrated & Multifunction]Pen Tester is not more than a Voltage Detector, it's a Dual-Purpose Tool! Equipped with crosshead and flathead screw dismantling capabilities and magnetic screwdriver bits, it's your solution. With its high-brightness colored light electric pen, it's a reliable assistant for electrical checks. A must-have for homes and professionals alike. [Non Contact Voltage Tester]electric pen tester featuring advanced NCV functionality. Detects voltages from 70V to 250V and includes circuit breakpoint detection. Intelligently identifies Live/Zero wires. Built-in high-illumination indicator ensures accurate testing even in low-light conditions, making it perfect for electrical equipment maintenance. [Troubleshooting Screwdrives]electric screwdrives features crosshead and flathead screw dismantling capabilities,with magnetic screwdriver bits.The screwdriver bit has a diameter of 4mm and a length of 25mm. [ Safty]screwdriver voltage tester pen with smart chip,slip- handle and insulation design keep you safe from electrical hazards.With its pocket-sized design,it offers convenient portability. Suitable for applications, including home, school, factory, and laboratory use. [What've Got]You receive 2 crosshead screwdriver pens and 2 flathead screwdriver pens.The voltage tester screwdriver with pen combination makes testing more convenient. It's also easy to carry along. Colour:Gray Material:Metal+Plastic Package Contents: 4 x Voltage Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.