Comprehensive Testing Capabilities: This versatile cable tester is designed to test a wide range of cable types, including RJ11, RJ12, and RJ45, and is compatible with Cat5, Cat5e, Cat6, Cat6a, and Cat7 standards for UTP/STP, LAN, and telephone cables. It accurately and quickly verifies cable continuity, wiring errors, and polarization. and User-Friendly Design: Built to withstand the rigors of field use, this tester features a compact, easy-to-operate design for enhanced portability. Its clear LED indicators provide instant diagnostic feedback, pinpointing the type and location of errors. Applications: Ideal for IT professionals and network technicians who need reliable tools for installing, troubleshooting, and maintaining residential, commercial, and industrial networks. Color:As Shown Material:ABS Package Contents: 1 * Network cable 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.