[Upgraded & Multifunctional] This pen tester is more than just a voltage detector—it's a dual-purpose tool. Equipped with crosshead and flathead screwdriver functions and magnetic screwdriver bits, it offers practical solutions for everyday tasks. The high-brightness illuminated tip helps ensure visibility during electrical inspections, making it a reliable assistant for basic electrical checks. A must-have tool for home use and similar applications. [Non-Contact Voltage Detection] Featuring advanced NCV technology, this electric pen tester detects voltages from 70V to 250V and supports circuit breakpoint detection. It intelligently distinguishes between live and neutral wires. The built-in high-illumination indicator ensures reliable performance even in dimly lit environments, ideal for routine electrical maintenance. [Troubleshooting Functionality] Designed with integrated crosshead and flathead screwdriver tips and magnetic bit retention. The screwdriver bit measures 4mm in diameter and 25mm in length, suitable for common screw types encountered in electronics and household appliances. [Safety & Portability] Incorporates a smart detection chip, slip-resistant grip, and insulated construction to help protect against electrical hazards. Its compact, pocket-sized design ensures easy carrying and storage. Suitable for use in homes, schools, factories, and laboratories. [What’s Included] 2 crosshead screwdriver pens and 2 flathead screwdriver pens. The combination of voltage tester and screwdriver in a pen-style format enhances convenience and portability. Color: Gray. Material: Metal + Plastic. Package Contents: 4 x Voltage Tester Pen. Only the items listed are included; other accessories are not part of the package. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.