Behringer Cable Tester CT100

6-in-1 Cable Tester for XLR, 1/4" TRS, 1/8" TRS, TT TRS, RCA, and MIDI Cables
Behringer Cable Tester CT100 image 1
Behringer Cable Tester CT100 image 1
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Behringer Cable Tester CT100
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Check Your Cables!

Make sure your gear is ready to go with the Behringer Cable Tester CT100. Bad cables can instantly ruin your gig or session. The CT100 cable tester is the perfect, and inexpensive, way to find bad cables fast. This compact unit tests the most common audio cables including XLR, TRS, MIDI, and more. You even get to choose from three testing modes. Sweetwater knows that keeping your studio or live rig running in top shape is important to you, and we're confident that the Behringer Cable Tester CT100 can help make that a reality.

Behringer Cable Tester CT100 Features:
  • Easy-to-use cable tester for common audio cables
  • Tests XLR, 1/4" TRS, 1/8" TRS, TT TRS, RCA, and MIDI cables
  • Microprocessor-controlled modes include Cable Test, Installed Cable Test, and Tone
  • Runs on 2 AA batteries
  • Includes belt clip for busy roadies and techs
  • Performs continuity check, intermittent contact check, phantom power, and ground shield check
Test your cables quickly and accurately with the Behringer Cable Tester CT100!

Tech Specs

Manufacturer Part Number CT100

Customer Reviews

Based on 8 reviews
Write your review

Behringer CT100 - a no brainer

This cable tester was invaluable when I was building out a pedalboard and making my own custom length patch cables. I was able to test each patch cable before I put it in the signal path of the board. No more pulling stuff apart and using trial & error to find the funky cable. Best device for the $$ evah!! Saved me a lot of time and aggravation.
Music background: Hack. Always have been...always will be...over 50 years...

Great features, finds intermittent problems!

Has a tone generator so you can check your mixer line/mike levels. When an intermittent short or open occurs, the tester lights remain lit after the failure has gone away! This is a great feature. It checks everty type of cable I have. It even checks if the cover on an XLR cable is grounded.
Music background: Experienced

Works great

Easy to use. No complaints.

Best Price , Best Product

Work's great & take's the guess work out. A great buy.


Simple to use, and fast. One of the features I like most is the 'intermittent connection' feature, which features latching LEDs to let you know if there is an intermittent issue on any / all pins of a cable under test. Handy. works. I was recently troubleshooting a 16 x 4 snake, and the intermittent fault checked worked flawlessly. That is, I was able to quickly determine that one pin was 'iffy' on a specific mic line. It's nice knowing during dis assembly of an XLR what needs fixing before even opening up the connector. Lots of features, and yes, one could make this sort of thing, but at this price, why bother ? Seriously, very handy, and very, very affordable. Also, there are three 'reference' tones that can be generated (handy for checking for signal presence). Keep in mind though that at this price point, you can't use them as rock-solid cal values - they vary with battery supply voltage. Still, to give you a ball-park idea of levels and relative differences among them, you just can't go wrong. There's even an included belt-clip if you want...
See also: Behringer, Behringer Test Equipment