Features: This purpose RJ45/RJ11 cable tester efficiently identifies wiring faults in Ethernet networks and telephone lines, featuring smart auto detection for cable verification and compatibility with Cat5 to Cat7 standards. Equipped with color coded LED indicators and a ABS metal construction, the portable diagnostic tool visual for continuity checks, split pair detection, and connection monitoring. Ideal for technicians, IT , and enthusiasts managing cabling systems in commercial server rooms or residential installations. troubleshooting workflows during office expansions, data center maintenance, or home theater setups by quickly pinpointing miswired ports and faulty cables. The with numbered LED arrays simplifies complex cable verification tasks, while its pocket sized design ensures across multiple job sites without compromising durability. Specifications: []: ABS, Metal [Product Size]: 10.5x10.5x2.5cm [Product Weight]: 120g [Color]: Black and Yellow [ Type]: RJ45 RJ11 Package Includes: 1 x Telephone cable note: Due to the problems of lighting effects and angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.