Professional Coaxial, RJ-45, and RJ-11/12 Multifunction Tester w/ LCD Display
    Product # 8128
    Professional Coaxial, RJ-45, and RJ-11/12 Multifunction Tester w/ LCD Display
    Product # 8128
    Out of Stock ETA: TBD


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    Professional Coaxial, RJ-45, and RJ-11/12 Multifunction Tester w/ LCD Display

    The Monoprice LAN Cable Solution is one of the easiest to use and most complete multifunction cable testers available.

    This unit can test the integrity of RJ45, RJ11/12, F-type Coax, and BNC Coax cables for shorts, open conductors, crossed wires, and cable length. The 16 x 4 character LCD display shows either Pass or Fail on any cable test, and if Failed, the specific wires that failed and the type of failure.

    The Loopback testing mode can test any RJ type cable (11/12/45) with each end connected directly to the tester. This can test for Open, Short, Crossed, or Split conditions for each conductor. It also identifies whether the RJ cable is shielded or unshielded. Additionally, it can show the distance along the cable at which an Open occurs using the built-in Time Delay Reflectometer (TDR), allowing you to easily locate the point of failure. Cable length can be tested out to 350 meters.

    When testing Coax type cables and RJ45 with the ends at different locations, the included Remote Terminator is used to test for Open, Short, or Crossed connections. When an Open condition is detected, the distance to the break point is displayed. The Remote Terminator is stored in the base of the unit and can be easily removed for testing.

    Both the Length and Tone modes are tested without a terminator or direct connection to the other end of the cable. The length mode shows the total length of the cable, or the length to any existing cable break. In Tone mode the tester sends a tone down the cable, which can be sensed using an Amplifier Probe (not included). This can be used identify cables within a bundle or as an alternate method of locating cable breaks.

    A built-in memory module allows you to store 8 results each for LAN and TEL modes, plus 4 results each for Coax and Length modes. The tester has an automatic power-off feature to save battery life, which kicks in after 5 minutes of nonuse in all modes except TONE mode, and after 30 minutes in TONE mode.


    WARNING!!! Do not test live circuits as it could cause damage to the tester unit or personal injury.

    Support Files:

    Display Special 4 x 16 character big screen LCD lattice
    LCD Module 70.6 x 60 mm (valid visual field is 60 x 32.6 mm) Standard
    Supported Connector Type RJ45, RJ12, RJ11 F-type Coax, BNC Coax (with included adapters)
    Test Modes 1-LAN, 2-TEL, 3-COAX, 4-TONE, 5-LENGTH
    Supported Cable Type Shielded or unshielded, Cat6, Cat5e, Cat5, Cat4, Cat3, and Coax
    Testing Functions Open circuit, short circuit, jumper wire, reverse, connection or cross-talk interference, and split pairs
    Measurement Types Measures cable length via TDR, checks and verifies wire map, generates four different tracing tones to help identify users
    Cable Length & Accuracy Accuracy of the length measurement is +/- 5%, testable lengths are 1~350 meters (3~1200 feet)
    Minimum Cable Length for Testing of Split Pairs 1 meter (3 feet)
    Power Source 9 Volt alkaline battery with detection of low battery condition
    Turns Off Automatically Auto-off in any mode and low power consumption for long battery life
    Input Protection Protection against excess voltage, transients ringer signal
    Dimensions (WHD) 3.5" x 1.6" x 7.7" (90 x 40 x 195 mm)
    Operating Temperature +32 ~ +122°F (0 ~ +50°C)
    Storage Temperature +14 ~ +140°F (-10 ~ +60°C)
    Humidity 10 ~ 90%, non-condensing

    Package Contents:

    • 1x Tester unit
    • 1x Remote terminator (attached to tester base)
    • 1x Zippered, nylon carrying case with front pouch
    • 2x F-type male to BNC type female coax adapters
    • 2x RJ45 to RJ11 adapter clips
    • 1x 9 volt alkaline battery

    Note: Please remove plastic wrap from battery before use.

    3.7 / 5.0
    41 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    Best Value !
    Overall BEST VALUE that I could find online when comparing features versus price. Lives up to advertising so far.

    PROS: Best Value for functionality vs. price in category. Works as advertised and easily switches between english or metric.

    CONS: Manual could have more details although menus are mostly intuitive. Have read reviews reporting that device drains batteries, but have not experienced this as I shut it off in between readings and not a heavy user. I don't' use the auto-off feature.
    October 18, 2013
    Nice Tester
    works Great and is a nice upgrade to my toolkit
    Amazingly useful!
    I've had this tester for a little more than a year and I use it on at least a weekly basis, with some BIG jobs throughout the year involving heavy use. It's always done its job, and I've been really happy with the unit.

    PROS: Reliable

    Useful data

    Works for F and, with an adapter, BNC connections as well!

    Looks impressive
    November 2, 2015
    Monoprice comes through again
    I have only used it for Ethernet cable testing. Does not test and measure length in one test one test for a continuity another for length. Not a big deal I am not dealing with long cable runs.

    PROS: Audible tone on remote is nice

    CONS: Battery was very near death. On option for testing crossover cables resulting in "PASS" would be nice instead it displays "FAIL" "CROSS".
    March 13, 2013
    Great tester, great price!
    It took me a little bit to figure out the nuances of this tester, but once I did, I love it! It's SOOOO much better than the cheap cat5 tester I was using. The cable length feature is great too.
    January 5, 2013
    I couldn't have done my network/telephone/coaxial cables without this tool
    It does what it says and does it well. I'm very glad I purchased this tool.
    Love MonoPrice too.

    PROS: It works great & is easy to use.

    CONS: It loses it's settings & length calibration every time it automatically turns off.
    September 8, 2011
    Multifunction Lan & Coax Tester
    Have used it already a bit and it does what its supposed to.
    At this price you can't really go wrong

    PROS: Multi featured tool
    Price vs competition very good- value
    Has a back light
    Auto shutdown
    Half decent zipper case with accessory pocket

    CONS: A Bit of glue inside the lcd screen, long hair type strip but off to the side so doesn't effect the reading or such
    August 24, 2011
    Professional Coaxial, RJ-45, and RJ-11/12 Multifunction Tester w/ LCD Display
    I initially ordered this unit, and the original unit failed. But Monoprice replaced my unit and I have not had any problems since. I will buy an additional one, so I can keep one in my away bag, and another in my service department.

    PROS: Works correctly for cable testing and TDR (length)

    CONS: none
    May 27, 2013
    Needed a reasonably priced tool for the job. It has been getting used often. So far excellent unit.

    PROS: works well, covers all my needs in one unit

    CONS: a little bulky
    May 24, 2014
    This item is incredible, helped me diagnose broken links with ease
    For $80 if you are doing anything more than 5 jacks, this thing (The cable tester) is NEEDED

    PROS: Can test Length , accurate to within 2 feet
    January 3, 2012
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