1Powerful Function: Efficiently track and locate various cables with this versatile cable tester. Easily trace for Ethernet, telephone, and LAN cables, making network troubleshooting a breeze. 2Intuitive Display: Quickly identify the continuity and polarity of Ethernet cables with this wire tester. The intuitive indicators show the status of the cable, simplifying network installation and maintenance. 3Professional Testing: Ensure the integrity and functionality of your network cables with this cable tester. Test both RJ45 and RJ11 cables for open, short, and crossed wires, ensuring reliable connections. 4Tone Reception: Detect and locate telephone line problems effortlessly with this telephone tone generator. The convenient tone probe allows for easy identification and troubleshooting of wiring issues in telephone lines. 5Multifunctional Design: Simplify cable testing with this cable tester. Test various types of cables, including Ethernet, telephone, ensuring hassle free network maintenance.