1. The clip design is easy to use and portable 2. Long-life neon bulbs provide high brightness, consistent performance, and reliable durability 3. Anti-slip handle with comfortable grip for improved handling 4. Chrome vanadium steel magnetic bit material 5. Ergonomic design, convenient to use without requiring batteries 6. Live wire identification: indicator lights up for live wire, remains off for neutral wire 7. Strong magnetic tip effectively holds screws and small metal parts to enhance work efficiency Item model number: B04 Product Name: Electrician Test Pen Measuring range: Live and neutral wire identification Product technology: Neon bulb Applications: Suitable for use in electronic manufacturing, electrical appliances, automotive repair, household applications, and other general purposes Color: Grey Material: Metal Package Contents: 2 x Voltage Tester Pen Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.