Features: Ensure long time stability with our POE Line Tester, featuring overloaded protections that prevents equipment damage due to power failures. Equipped with advanced interferences resistant technology, this tester operates reliably in complex electromagnetic environment, offering accurate data output and signal detection capabilities. For networking engineers, IT support staff, electricians, and repair technicians, providing efficient tool for troubleshooting and testing tasks. Perfectly for corporate networking maintenance, data center testing, intelligent home wiring, and educational training, ensuring seamlessly connection. Compatibility with various cable type like CAT5e and CAT6 versatiled choice for both professional and home users effective networking problem solution. Specifications: Size:about 126x49mm/ 4.96x1.93in 175x42mm/6.89x1.65in Component: Plastic For RJ45 RJ11 CAT5e CAT6 Telephone Line Networking Wire Detector Tester Package Includes: 1Set POE Networking Wire Detector note: There might be a bit color distortions due to different computer resolution There might be size errors due to different computer resolution