UNI-T UT681C Network Cable Tester

The UNI-T UT681C cable tester is a handy and reliable tool for checking the condition of Ethernet, telephone, and BNC cables. Indispensable for installers, technicians, and service personnel, it allows instant detection of breaks, short circuits, misconnections, or cable crossings. Thanks to its compact design, clear LED indicators, and 9V battery power, the UT681C is suitable for both quick field tests and thorough network inspections in the office or server room. Multifunctionality that saves time The UT681C supports cables terminated with RJ45, RJ11, and BNC connectors (via the RJ45-BNC adapter included). It allows quick signal continuity checks and diagnosis of short circuits, open circuits, and misconnections — including crossed pairs. The built-in LED array allows easy assessment of individual conductor conditions in the cable, in both fast and slow test modes. Simple operation, maximum mobility The device is operated with a single button, eliminating the need for complicated configuration. An automatic shut-off function after 10 minutes of inactivity saves battery, and a low charge indicator warns when the power supply needs to be replaced. The tester is lightweight, handy, and ready to use as soon as the battery is inserted. Robust design for years of use The UT681C is designed to operate in a wide range of temperatures and humidity, allowing it to be used both in the office and outdoors. CE and UKCA certifications attest to its high build quality and safe use. Included: UNI-T UT681C cable tester (transmitter and receiver) 9V battery RJ45-BNC adapter User's manual Manufacturer: UNI-T Manufacturer code: UT681C Supported connectors: RJ45, RJ11, BNC (with RJ45-BNC adapter) Test functions: Detection of short circuits, breaks, crossings and incorrect connections Test modes: fast, slow Result display: LEDs Ethernet cable shielding test: Yes Power supply: 9V battery Automatic shutdown function: After 10 minutes of inactivity Low battery indicator: Below 7.2V One button operation: Yes Operating temperature: 0~40°C Storage temperature: -10~50°C Operating humidity: 20~80% RH Storage Humidity: 10~90% RH Maximum operating altitude: ≤2000 m Safety standards: CE EN61326-1:2013, EN61326-2-2:2013 Net weight: transmitter - 87 g, receiver - 51 g Dimensions: Transmitter - 102 × 62 × 28 mm; receiver - 102 × 37 × 28 mm Color: red-gray