---
product_id: 413612361
title: "Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue"
brand: "mastfuyi"
price: "€ 64.88"
currency: EUR
in_stock: false
reviews_count: 13
url: https://www.desertcart.sk/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker
store_origin: SK
region: Slovakia
---

# Tracks RJ11/RJ45 cables fast Detects cable sequence & faults Tests telephone line status Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue

**Brand:** mastfuyi
**Price:** € 64.88
**Availability:** ❌ Out of Stock

## Summary

> 🔍 Master your network with pinpoint accuracy — don’t get left offline!

## Quick Answers

- **What is this?** Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue by mastfuyi
- **How much does it cost?** € 64.88 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker)

## Best For

- mastfuyi enthusiasts

## Why This Product

- Trusted mastfuyi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Battery Health Alert:** Low battery indicator ensures uninterrupted testing sessions
- • **Versatile Compatibility:** Supports Cat5 & Cat6 Ethernet cables for modern network maintenance
- • **Effortless Cable Tracing:** Locate RJ11 & RJ45 lines without stripping insulation
- • **Precision Cable Diagnostics:** Identify open, short, reversed pairs & wrong wiring instantly
- • **Comprehensive Phone Line Testing:** Detect idle, ringing, off-hook states & polarity with ease

## Overview

The Mastfuyi Network Cable Tester FY8233E is a multifunctional tool designed for professional-grade cable maintenance. It accurately detects cable faults including open circuits, shorts, and miswiring, while enabling quick tracing of RJ11 and RJ45 cables without damage. It also tests telephone line status and polarity, with a built-in low battery indicator to ensure reliability. Compatible with Cat5 and Cat6 Ethernet cables, this battery-powered tester is a must-have for efficient LAN and telephone line troubleshooting.

## Description

Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue: desertcart.com: Industrial & Scientific

Review: Works but not as easy as you would think - Overall its a great product, does what i needed it to do and solve a problem for me. However you really need to read the 2 font instructions to understand how to use it. I bought it to specifically tone a coax cable. Got the device, set the dial to "tone" and nothing. Checked other settings, seemingly not working right and nothing. Put the unit on "scan" and i get a tone. No problem ill use it for my needs and return it defective. Fast forward, fixed my issue then decided to read t instruction. No joke on 2 font. i needed my phone to read it. Well low and behold, you get the tone feature my using scan, the "tone" on the dial is to check dial tone on a phone line. After looking over the instructions it does work as they say its just really odd why the settings are callled what they are. Am keeping as it comes in handy and was a good value just not intuitive like any other testing i own or have used.
Review: Very good for the price - Lacks a 200VAC setting but the 600VAC rounds pretty close. My other meter showing 123.5VAC and this one will show 124 - 125VAC. Other settings seem to be good. Tested a 1.5V AAA and 9V alkaline with another and it was spot on. The capacitor tester is also good. The contactless voltage detection also worked well but of course always check outlets, etc. with probes. 5* because it's $10 and don't expect much on build quality. But with the cover it feels nice int he hand. I just wouldn't drop it and find out.

## Features

- Cable Sequence Calibration:It can detect the cable sequence, open circuit, short circuit, wrong pair and reverse connection of the network cable
- RJ45 RJ11 Cable Tracking:RJ11 and RJ45 cables can be found through transmitter. It is simple and fast to find the line without stripping the outer skin of the cable
- Telephone Line Status Detection: It can detect the status of the working telephone line (idle, ringing, off-hook) and discriminate TIP or RING line
- Detect Cable Level and Positive and Negative Polarity: Use the transmitter to detect the DC level or positive and negative polarity of the line
- Transmitter Undervoltage Indication：Rotate the function knob of the transmitter to the “SCAN” position. When the transmitter's battery is lower than the working voltage, the cable finding function indicator “SCAN” on the transmitter will flash. When the indicator is flashing, please Replace the battery in time

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09M6YPWTJ |
| Best Sellers Rank | #190,608 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #403 in Network & Cable Testers |
| Brand | Mastfuyi |
| Color | Black, Blue |
| Date First Available | November 18, 2021 |
| Item Weight | 7.1 ounces |
| Item model number | FY8233E |
| Manufacturer | Mastfuyi |
| Measurement Type | Multimeter |
| Min. Operating Voltage | 0.6 Volts |
| Package Dimensions | 7.83 x 4.61 x 1.93 inches |
| Power Source | Battery Powered |
| Specification Met | Ul 61010-1, Iec 61010-2-030 |
| Style | Blue |
| UPC | 728990021767 |
| Upper Temperature Rating | 60 Degrees Celsius |

## Product Details

- **Brand:** Mastfuyi
- **Color:** Black, Blue
- **Item Weight:** 200 Grams
- **Power Source:** Battery Powered
- **Style:** Blue

## Images

![Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 1](https://m.media-amazon.com/images/I/51AICysyC4L.jpg)
![Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 2](https://m.media-amazon.com/images/I/51HA4IEhQPL.jpg)
![Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 3](https://m.media-amazon.com/images/I/51Sg9CkEcbL.jpg)
![Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 4](https://m.media-amazon.com/images/I/51TJ52XdXBL.jpg)
![Network Cable Tester, Line Finder with Probe Tone, Wire Tracker Multifunction, RJ11 RJ45 Cable Tracer, Telephone Line Test, Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 5](https://m.media-amazon.com/images/I/51eoNkbCoJL.jpg)

## Questions & Answers

**Q: does it measure capacity?**
A: This does measure capacitance

**Q: Does it measure frequency?**
A: Inexpensive multimeter that measures AC V - DC V - Resistance - Amperage - Checks Diodes... But if you're asking if it is a oscilloscope... No

**Q: Can this safely test fuses for continuity?**
A: Of course it can.  Set the dial on the meter to the exact opposite of the off position.  Then move it one click to the left.  When you touch the probes together it should make a sound.  Now touch the probes to the opposite ends of the fuse.  If it's good you will hear the same sound.

**Q: Are the batteries already installed in the device?**
A: batteries included but not installed

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works but not as easy as you would think
*by T***E on July 14, 2023*

Overall its a great product, does what i needed it to do and solve a problem for me. However you really need to read the 2 font instructions to understand how to use it. I bought it to specifically tone a coax cable. Got the device, set the dial to "tone" and nothing. Checked other settings, seemingly not working right and nothing. Put the unit on "scan" and i get a tone. No problem ill use it for my needs and return it defective. Fast forward, fixed my issue then decided to read t instruction. No joke on 2 font. i needed my phone to read it. Well low and behold, you get the tone feature my using scan, the "tone" on the dial is to check dial tone on a phone line. After looking over the instructions it does work as they say its just really odd why the settings are callled what they are. Am keeping as it comes in handy and was a good value just not intuitive like any other testing i own or have used.

### ⭐⭐⭐⭐⭐ Very good for the price
*by B***V on July 17, 2023*

Lacks a 200VAC setting but the 600VAC rounds pretty close. My other meter showing 123.5VAC and this one will show 124 - 125VAC. Other settings seem to be good. Tested a 1.5V AAA and 9V alkaline with another and it was spot on. The capacitor tester is also good. The contactless voltage detection also worked well but of course always check outlets, etc. with probes. 5* because it's $10 and don't expect much on build quality. But with the cover it feels nice int he hand. I just wouldn't drop it and find out.

### ⭐⭐⭐⭐ Many features
*by G***G on December 8, 2023*

For an inexpensive entry level tool this was a good choice. Not sure about the claims but looking for a meter that measures frequencies for less than $15 seems like a lot to expect. What this does have is a backlight and several other desirable features. Can't even find some of those features in instruments like entry level Flukes and Uni T's etc. Just like many tools, several are sometimes needled for different jobs and projects. Leak proof batteries like Voniko or Lithium batteries are the first changes I make. The second thing to check is your probe leads. More often than not a quality set or simple wipe with alcohol prep pad will solve most prep issues. Overall I was pleasantly surprised with the purchase.

## Frequently Bought Together

- Mastfuyi Digital Multimeter, True RMS 6000 Counts, Multi Tester, NCV Electrical Tester, Backlit LCD Display, Auto-Ranging Tests, Voltage, Current, Resistance, Continuity, Diode, Capacitance
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**Shop now:** [https://www.desertcart.sk/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker](https://www.desertcart.sk/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-13*