This RJ45 / RJ11 cable port networking cable tester accurately measures resistance and quickly identifies line faults, ensuring stable networking connection Ideal for IT professional and home users needing frequent networking troubleshooting The ABS materials excellent impacts resistance and extends product life, making it a reliably long term tool for engineers and personnel Compact and easy to carry, allowing quick testing Especially suitable for technicians who work on the go Supports multiple interfaces types including RJ45 and RJ11, meeting various device connection needs Perfect for both home networking wiring and enterprises levels networking maintenance Features indicators lights and buttons, making it easy for none professional to operate Great for home users solving minors networking issues independently, Manufacturer: RGYBAO