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Behringer CT100 6-in-1 Cable Tester

BH #BECT100 • MFR #0003-AAA86-001
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Behringer CT100 6-in-1 Cable Tester
Key Features
  • Microprocessor-Controlled Cable Tester
  • Cable, Installed Cable & Tone Test Modes
  • XLR, 1/4", 3.5mm, RCA, TT, and MIDI I/O
  • Continuity & Intermittent Contact Check
Keep every one of your cables in working order with the CT100 from Behringer, a 6-in-1 cable tester with three modes of operation: Cable, Installed Cable, and Test Tone mode. With the ability to check for continuity, intermittency, the presence of phantom power, and grounded shields, the CT100 is a vital tool for engineers.
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Behringer CT100 Overview

Keep every one of your cables in working order with the CT100 from Behringer, a 6-in-1 cable tester with three modes of operation: Cable, Installed Cable, and Test Tone mode. With the ability to check for continuity, intermittency, the presence of phantom power, and grounded shields, the CT100 is a vital tool for engineers.

The CT100 features I/O connections for XLR 3-pin, 1/4", 3.5mm, and TT/Bantam TRS, and 5-pin DIN MIDI. The intuitive LED display makes it easy to read test results at a glance and in the dark. The test-tone generator can generate tones at 1 kHz or 440 Hz at +4 dBu, -10 dBV, or -50 dBV, selectable from a dedicated switch. The CT100 runs on two AA batteries for portable convenience (not included). The CT100 includes a belt clip.

Test With the Best
The CT100 accepts every type of cable you might use in a recording or live performance situation: XLR, mono and TRS phone (1/4", 3.5mm, TT/Bantam), RCA, and even 5-pin DIN MIDI. Choose from 3 modes: Cable Test, installed Cable Tester, or Tone. Because this handy tool runs on two AA batteries you can carry it in your pocket, or clip it onto your belt and be ready to troubleshoot at a moment's notice.
UPC: 689076750677

Behringer CT100 Specs

Inputs/Outputs
Audio I/O
1x XLR 3-Pin Line Input
1x 1/4" TRS Line Input
1x 1/8" / 3.5 mm TRS Line Input
1x TT/Bantam TRS Line Input
1x RCA Coaxial Line Input
1x DIN 5-Pin MIDI Input
1x XLR 3-Pin Line Output
1x 1/4" TRS Line Output
1x 1/8" / 3.5 mm TRS Line Output
1x TT/Bantam TRS Line Output
1x RCA Coaxial Line Output
1x DIN 5-Pin MIDI Output
Power
Power Source
Battery (Not Included)
Battery Type
2x AA
Physical
Color
Gray
Material of Construction
Metal
Packaging Info
Package Weight
0.995 lb
Box Dimensions (LxWxH)
8.45 x 5.75 x 1.95"

Behringer CT100 Reviews

My third one, great product

By Patrick
Rated 5 out of 5
Date: 2026-04-13

Great tester, have had two others over the years, - they’re workhorses, and test just about anything audio

Behringer ct100 cable tester

By David
Rated 4 out of 5
Date: 2025-01-27

worked as advertised, would be nice if it had the patterns of each cable so you would know what to expect when connecting, but I found that info elsewhere so it wasn't a big problem once you understand how to read the pin connection diagram.

See any errors on this page?

Will the test DMX cable?

Will the test DMX cable?
Asked by: Richard
The Behringer CT100 6-in-1 Cable Tester is not designed to test DMX cables, which are used for digital communication in lighting control systems. As an alternative, we suggest the dbx CT-2 Cable Tester. BH # DBXCT2: This tester is optimized to check DMX cables.
Answered by: Daniel O
Date published: 2026-03-06
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