Cable Tester RJ45/RJ12

Cable Tester RJ45/RJ12


40 in stock

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Cable Tester RJ45/RJ12

LAN Network Cable Tester RJ11 RJ12 RJ45 Cat5 Networking Tool


  • Can test correspondingly double-twisted cables 1, 2, 3, 4, 5, 6, 7, 8andG, meanwhile, Can judge wrong connection, short circuit, and open circuit.
  • Can test RJ 11and RJ45
  • Test of double-twisted cables: Switch on the power. (S is slow automatic grade, Mis manual.)
  • Put cables into both the main tester and remote tester. The lights of the main tester will turn on sequentially from 1 to G.
  • Main tester: 1-2-3-4-5-6-7-8-G
  • Remote tester: 1-2-3-4-5-6-7-8-G RJ45
  • 1-2-3-4-5-6 RJ11

Following are abnormal connections

  • If one cable, for example, cable NO.3 is open-circuited, the two NO.3 lights of the main tester and remote tester will not turn on.
  • If several cables are not connected, several lights will not turn on respectively. If less than two cables are connected, none of the lights is on.
  • If two ends of a cable are disordered, for example, NO. 2and NO. 4, then displays on:
  • Main tester: 1-2-3-4-5-6-7-8-G
  • Remote tester: 1-4-3-2-5-6-7-8-G
  • If two cables are short-circuited, neither of the corresponding lights is on of the remote tester while the main tester remains unchanged.
  • If three cables, including three, are short-circuited, none of the corresponding lights are on.
  • If test patch panels or wall plate outlets, 2 cables that can match each other (RJ45) will be connected to the tester.
  • If test cables of the same axes, BNC turns on when the cable works.
  • 9V reduplicated battery is used in this tester. The battery is to be changed if any weak light appears (Battery is not included.)


  • 1 x RJ45 RJ11 RJ12 CAT5 UTP Network LAN Cable Tester Networking Tool
  • 1 x Leather Pouch
  • 1 x User manual

What’s in the box

1x LAN/Phone RJ


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