---
product_id: 301272125
title: "OSP Elite Core CT-04C Cable Tester"
brand: "o.s.p"
price: "513 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/301272125-osp-elite-core-ct-04c-cable-tester
store_origin: PL
region: Poland
---

# LED indicators for instant continuity check Supports 12+ cable standards incl. XLR, USB, RJ45 9-way switch for versatile cable types OSP Elite Core CT-04C Cable Tester

**Brand:** o.s.p
**Price:** 513 zł
**Availability:** ✅ In Stock

## Summary

> 🎯 Master every connection with the ultimate cable tester in your toolkit!

## Quick Answers

- **What is this?** OSP Elite Core CT-04C Cable Tester by o.s.p
- **How much does it cost?** 513 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/301272125-osp-elite-core-ct-04c-cable-tester)

## Best For

- o.s.p enthusiasts

## Why This Product

- Trusted o.s.p brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Portable:** Lightweight 1.7 lbs design fits easily in your tech bag for on-the-go testing.
- • **Rugged Metal Build:** Durable, heavy-duty construction built to survive the busiest pro setups.
- • **Battery Powered Freedom:** Operates on a standard 9V battery—no cords, no hassle, just plug and test.
- • **Instant LED Confirmation:** Visual continuity feedback eliminates guesswork and speeds troubleshooting.
- • **Universal Cable Compatibility:** Test everything from XLR mics to USB and RJ45 with one device.

## Overview

The OSP Elite Core CT-04C Cable Tester is a professional-grade, battery-powered device designed to test continuity and connections across a wide range of cables including XLR, TRS, Speakons, MIDI, USB, RJ45 CAT5e, and DMX. Featuring a 9-way selector switch and LED indicators, it offers quick, reliable diagnostics in a rugged metal housing, making it an essential tool for audio engineers, network technicians, and multimedia professionals.

## Description

OSP Elite Core CT-04C Cable Tester

## Features

- 1/4 TRS 6.35mm Jacks
- XLR (Male & Female), RCA, MIDI and DIN
- RCA, MIDI and DIN connections
- 2, 4, & 8 Pole Speakons, 1/8" Mini Stereo 3.5mm and USB
- RJ45 CAT5e Network, DMX (3 Pin & 5 Pin)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Elite Core Audio |
| Part number | CT-04C |
| Item Weight | 835 g |
| Product Dimensions | 20.32 x 12.7 x 7.62 cm; 834.61 g |
| Batteries | 1 9V batteries required. |
| Item model number | CT-04C |
| Color | Yellow |
| Shape | Round |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Specification met | UL |
| Batteries Included? | No |
| Batteries Required? | Yes |

## Product Details

- **Brand:** O.S.P
- **Power source:** Battery Powered
- **Colour:** Yellow
- **Item weight:** 835 g
- **Item dimensions L x W x H:** 20.3 x 12.7 x 7.6 centimeters

## Images

![OSP Elite Core CT-04C Cable Tester - Image 1](https://m.media-amazon.com/images/I/71j-7phGqvL.jpg)

## Questions & Answers

**Q: Where do i find the pdf manual for this product?**
A: This site might help you out.   Otherwise I would be OK with copying mine and emailing it to You.      https://www.youtube.com/watch?v=v44lCcWfR0g           Ray in AZ

**Q: Does the rj45 tester test the 8 wires plus the screen?  i.e. all 9 conductors in stp cables?**
A: The RJ45 connection does not test the ground. However, if you touch metal components of each RJ45 connector on the cable to the metal rings around the 1/4" testers, then the ground should tone out if it's connected.

**Q: Will this test cables with different connectors on each end? for example, a trs to xlr adapter cable with 1/4" trs on one end and xlr on the other?**
A: Yes, you can test cables with two different type connectors at the same time.

**Q: Where (in what country) is this made?**
A: The OSP CT-04C is manufactured in China.

## Frequently Bought Together

- Elite Core OSP CT-04C Cable Tester, Speaker
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- MFL. 15-Plug Audio Cable Tester Line Finder Black 15-in-1 Cables Checker 10-Way Switch Wire Tracker with LED Indicators, Rectangular

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-27*