CT-20 Multifunctional Audio & XLR Signal Line Tester

The CT-20 Multifunctional Line Tester is a professional-grade cable testing tool designed for audio engineers, live sound technicians, studio professionals, and AV enthusiasts. Whether you're troubleshooting a faulty XLR cable, checking audio signal lines, or verifying connectivity before a gig or recording session, the CT-20 delivers fast, accurate, and reliable results — all in one compact unit.

Built with a durable stainless steel construction, this tester is engineered to withstand the demands of both studio and live environments. Its multifunctional design supports a wide range of cable types, making it the only cable tester you'll need in your kit.

Key Features

✅ Multifunctional Testing — Compatible with XLR, audio signal lines, and multiple cable types in a single unit
✅ Instant Cable Diagnostics — Quickly identifies open circuits, short circuits, miswiring, and correct pin connections
✅ Durable Stainless Steel Body — Built to last through demanding professional use
✅ Clear LED Indicator Display — Easy-to-read results so you can diagnose issues at a glance
✅ Compact & Portable — Lightweight form factor fits easily in any gear bag or tool kit
✅ No High-Concern Chemicals — Safe materials confirmed by manufacturer

Who Is This For?

The CT-20 is ideal for:

Live sound engineers and FOH technicians
Recording studio professionals
AV installation and rental companies
Broadcast and video production crews
Musicians and band managers managing their own gear
Home studio builders and audio hobbyists

What's in the Box?

1 × CT-20 Multifunctional Line Tester

Made in Mainland China.

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For more information on safe and proper use of professional audio and electrical testing equipment, visit the U.S. Occupational Safety and Health Administration (OSHA) – Electrical Safety Resource.

Frequently Asked Questions

Q: What types of cables can the CT-20 Multifunctional Line Tester test?

A: The CT-20 is designed to test a variety of cable types including XLR audio cables and general audio signal lines. Its multifunctional design makes it versatile enough for most professional audio and AV cable testing needs.

Q: How do I read the results on the CT-20 cable tester?

A: The CT-20 features a clear LED indicator display that shows the status of each pin connection instantly. You can quickly identify correct wiring, open circuits, short circuits, or reversed connections without any additional equipment.

Q: Is the CT-20 suitable for both live and studio environments?

A: Absolutely. Its rugged stainless steel body and compact, portable design make it an excellent choice for both on-stage live sound setups and in-studio cable management and troubleshooting sessions.

Q: Does the CT-20 require batteries or an external power source?

A: Please refer to the included product documentation for specific power requirements. Most compact cable testers of this type operate on standard batteries, making them fully portable and ready to use anywhere.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.