Features: Brand new and high quality Accurate Digital Display Easily read the digital display for precise wire detection. Convenient and Fast Perform self check by pressings the direct detection button with single hand and touchings the pen tip with others hand. If the pen light up, it indicates proper functionality. Suitable for Electricians and Enthusiasts This tool is perfect for professional and hobbyists who need to detect wire, circuit break, and faults in electrical system. Multifunctional Applications Whether you're workings on home wiring, troubleshooting electrical problem, conducting maintenance, this electric pen tester is a tool for all your electrical need. Large Screen and LED Lighting Large screen and LED lighting ensures easy reading even in low light conditions, providing convenience and accuracy for your electrical tasks. Specifications: Component: ABS Length: about 140mm/5.51inch Package Includes: 1xElectric Pen Tester note: Please allow 1 to 3cm error due to manual measurement, please make sure you not mind before your bid, Due to the differenceS between different monitors, the picture may not reflect the actual colorful of the item.