Tenmars TM-903 Multimedia LAN cable Tester


Regular price $234.99


  • Detects opens, shorts, miswires and split pairs on the twisted pair cabling.
  • Measures length.
  • Low battery detector.
  • Auto backlit.
  • Auto power off



The TM-903 Multimedia Cable Tester is a hand-held test instrument that lets you verify and troubleshoot the LAN cable of twisted pair.

It displays graph wire-map, opens, shorts, miswires, split pairs and the remote ID number all on one screen.

Using multiple remote ID up to 8 locators to test on RJ-45 (UTP, STP) LAN cable, video coaxial cable and RJ11 voice cable.


    Test connectors

    Test voice cable (RJ11), and video coax cable (F-connector) 

    Length test

    Range :up to 255m (836ft)

    Resolution :0.1m (ft)

    Unit :meter and foot

    Typical accuracy :±10%+1.0m (3ft)

    Operating temperature and humidity

    5°C to 40°C, below 80% RH

    Storage temperature and humidity

    -10°C to 60°C, below 70%