5-Pack Network Cable Testers Included Great for professionals who work on multiple sites or need backup units. Wide Compatibility Tests RJ45, RJ11, RJ12, CAT5, and CAT6 UTP cables for Ethernet and phone lines. LED Indicator Display Quickly detects open, short, miswire, or crossed connections for accurate diagnostics. Detachable Remote Unit Enables long-distance testing for installed or wall-mounted cables. Portable & Battery Powered Compact design powered by a 9V battery (sold separately), perfect for technicians and DIY home networking. Essential Networking Tool Perfect for **IT technicians, installers, and home users** managing network systems.