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    BNC USB Network Cable Tester, RJ45, RJ11

    The network cable tester allows testing of network, elephone, BNC coaxial cables, USB and other metal cables. Digital ethernet network tester is ideal for both novice and experienced users thanks to its easy-to-read display and simple controls.
    SKU: SISCO-NCT-300
    i h
    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days


    Buy a digital ethernet cable analyzer with backlit display, which has RJ11, RJ45, BNC, USB ports and no more adapters. Users can calibrate to ensure more accurate results. Whether installing a new network or troubleshooting an existing one, this cable tester is an essential tool.

    BNC USB network cable tester
    • Find BNC coaxial cables, shielded and common network cables, four-core network cables, telephone cables, USB cables and other metal cables with superb immunity to interference and no noise.
    • Alligator clips extend to find the wire and cable, and can find its short circuit location.
    • Available in the switch, router power on state to find the line.
    • Capable of measuring the length of network cable within 305m, can determine the location of short circuit and break point, with calibration function.
    • Capable of measuring the length of coaxial cables up to 2500m, with accurate location of break points.
    • Able to accurately determine the open circuit point at one end (left, right or middle).
    • Low voltage indication function when the host voltage is too low (≤6V).
    • Short-circuit, short-circuit, cross-circuit and short-circuit test for BNC coaxial cable, and short-circuit test for telephone cable.
    • Setting and storage and retrieval functions.
    • Automatic delayed power off and backlight function.


    The network cable tester is an essential tool used in the field of network and data communication systems. It is primarily used to test the continuity, connectivity, and performance of network cables and wiring. A network cable tester is commonly used in different industries, including IT, telecommunications, security systems, and home automation. 

    Network cable tester applicaion

    Model SISCO-NF300
    Length Test Cable Type Network cable, BNC coaxial cable
    Length Measurement Range ≤305m
    Length Test Uncertainty ±3%
    Wire Finding Test Cable Type Network, telephone. BNC coaxial cable, USB and other metal cables
    On-off Test Cable Type Network. BNC coaxial cable
    Main Tester Interface SCAN, RJ4, RJ11, USB-A, BNC
    Remote Connector RJ45, BNC
    Length Calibration Calibration of cable lengths greater than 10m
    Sensing Range Adjustable between 0- 60mm
    Power Supply 9V battery
    Accessories Box + kit + manual + batteries + headphones + crocodile clips


    Ethernet signal tester details


    Q1: What is a network cable tester?
    A1: A network cable tester is a device used to verify the integrity of network cabling, including Ethernet cables and phone lines. It can identify wiring faults, connectivity issues, and measure cable length.

    Q2: Why do I need a network cable tester?
    A2: A network cable tester is an essential tool for network technicians, IT professionals, and anyone who works with network cabling. It helps to troubleshoot problems quickly and accurately, saving time and money. By using a network cable tester, you can ensure that your network is running smoothly and efficiently.

    Q3: What features do network cable testers need?
    A3: When choosing a network cable tester, it's important to consider the features that will be most useful for your needs. Look for a tester that can detect open, short, and miswired cables, as well as measure cable length. It should have an easy-to-read display and be able to work with different cable types. Some testers also offer additional features, such as tone generation and tracing, which can be useful for more complex networks.

    Tips: Which tool is used to test network cable?

    A network cable tester is used to test the integrity of network cables. This tool can verify that network cables are properly wired and can identify any wiring errors or faults, such as broken wires, short circuits, or crossed connections.

    There are different types of network cable testers available on the market, including handheld testers, cable certifiers, and network analyzers. Handheld testers are more basic and typically used for quick cable testing and troubleshooting, while cable certifiers and network analyzers are more advanced and used to certify the performance of network cabling according to industry standards.


    Thank you for buying industrial test and measurement equipment on, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    5.0 1
    Write your own review Close
    Nelson | 9/6/2023 10:45 PM
    A Lifesaver for Network Troubleshooting
    The tester's operation is straightforward, and the LED indicator lights clearly indicate the status of the cables. It's a time-saver when I'm tracing and identifying cables in a network rack or diagnosing connectivity issues. The build quality is robust, and it feels durable enough to withstand regular use in a professional IT environment. The compact design makes it easy to carry in my tool bag for on-site work.