---
product_id: 594970039
title: "Network Cable Tester with Optical Power Meter, CAT5 CAT6 Ethernet Tester with Visual Fault Locator, RJ11 RJ45 Lithium Battery PoE Wire Tracer with NCV & LED Light (Blue)"
brand: "kolsol"
price: "₩410791"
currency: KRW
in_stock: true
reviews_count: 13
category: "Kolsol"
url: https://www.desertcart.kr/products/594970039-network-cable-tester-with-optical-power-meter-cat5-cat6-ethernet
store_origin: KR
region: South Korea
---

# Accurate CAT5/CAT6 length & fault detection 4-in-1 LAN & fiber tester Built-in LED & Visual Fault Locator Network Cable Tester with Optical Power Meter, CAT5 CAT6 Ethernet Tester with Visual Fault Locator, RJ11 RJ45 Lithium Battery PoE Wire Tracer with NCV & LED Light (Blue)

**Brand:** kolsol
**Price:** ₩410791
**Availability:** ✅ In Stock

## Summary

> 🚀 Network testing redefined: all your cable diagnostics in one powerful tool!

## Quick Answers

- **What is this?** Network Cable Tester with Optical Power Meter, CAT5 CAT6 Ethernet Tester with Visual Fault Locator, RJ11 RJ45 Lithium Battery PoE Wire Tracer with NCV & LED Light (Blue) by kolsol
- **How much does it cost?** ₩410791 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/594970039-network-cable-tester-with-optical-power-meter-cat5-cat6-ethernet)

## Best For

- kolsol enthusiasts

## Why This Product

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

## Key Features

- • **Illuminate & Locate:** Integrated LED light and Visual Fault Locator (VFL) help you quickly identify cable breaks and wiring issues—even in low-light environments.
- • **Powerful & Portable:** Rechargeable 1500mAh lithium battery ensures long-lasting use on the go, perfect for busy professionals managing multiple sites.
- • **Precision You Can Trust:** Accurately test CAT5 and CAT6 cables with POE verification, length measurement, and fault pinpointing to keep your network flawless.
- • **All-in-One Network Mastery:** Combine LAN cable testing, optical power metering, visual fault locating, and non-contact voltage detection in a single sleek device.
- • **Designed for the Pro & DIYer:** Compact, rugged, and easy to use—empower yourself to troubleshoot and fix network issues without costly service calls.

## Overview

The KOLSOL Network Cable Tester is a professional-grade 4-in-1 tool combining LAN cable testing, optical power metering, visual fault locating, and non-contact voltage detection. Designed for CAT5 and CAT6 cables, it offers precise fault detection, length measurement, and POE testing. Featuring a rechargeable lithium battery and built-in LED light, this compact device empowers network managers and tech-savvy professionals to diagnose and resolve wiring issues efficiently, reducing downtime and service costs.

## Description

KOLSOL Network Cable Tester with Optical Power Meter, CAT5 CAT6 Ethernet Tester with Visual Fault Locator, RJ11 RJ45 Lithium Battery PoE Wire Tracer with NCV & LED Light (Blue): desertcart.com: Industrial & Scientific

Review: It does the job! - The device is Super-simple to use! 1) Install a 9V battery 2) Connect your "test" cable to the appropriate jacks on the Main UNit and "Remote" unit 3) Turn it on. The RED "POWER" LED will start blinking: FAST in the "ON" position, SLOW in the "S" position 4) Watch the GREEN LEDs on the Main unit sequence from "1" to "G", then repeat until you turn the Main unit OFF or disconnect the cable. Place the POWER switch in the "S" (Slow) position to better observe the LED sequencing. 5) The GREEN LEDs on the "Remote" unit will sequence with the Main unit's LEDs, with the "Remote" LEDs indicating which wires are connected to each other. IDEALLY, one ONE LED on each of the Main and "Remote" units will light in sequence. If NO LED on the "Remote" unit lights for a given Main unit LED, that wire IS NOT CONNECTED between the two points. READ THE INCLUDED DIRECTION SHEET to interpret other "LED 'patterns, etc.'" IMPORTANT: This tool is simply a GO/NOGO, end-to-end "continuity", cable checker (i.e., pin 1 goes to pin 1, pin 2 goes to pin 2, G goes to G, etc.) It ** IS NOT **: 1) a "volt meter" - ensure BOTH CABLE ENDS ARE ** UNPLUGGED ** (i.e., Free-Hanging), or you'll risk damaging/destroying the unit! 2) a wire "resistance" indicator - it simply indicates the presence/absence of a "conductive path" between each connector pin. Lit LEDs on BOTH units indicate a "conductive" path, UNLIT LED(s) on the "Remote" unit indicate NO "CONDUCTIVE" PATH between the two pins. 3) a "data speed" indicator - it does not indicate "data speed" through the cable (i.e., CAT3, CAT 5) 4) a "Data Logger" - it WILL NOT "store 'test results'" for later retrieval. If you want to record how the cable is "wired", WRITE DOWN the LED connection data for each wire. The "G" LEDs ** WILL NOT LIGHT ** if there's no "shield" connection between the plugs! "Shielded" (read "Expen$ive") RJ cables will have visible metal "shrouds" on the length of the RJ connectors AND they'll usually be more "rigid" than "Common, Run-Of-The-Mill" RJ cables. Treat this unit like you'd treat any other Measurement Tool. While it does have a degree of "ruggedness", it won't endure "abuse" (i.e., gnawing by a dog, repeated dropping on the floor, "play" by a toddler). UPDATE (8/20/20): I took the unit to work to test a "non-standard" ("Crossover") RJ45 patch cable. THE TESTER CORRECTLY "MAPPED" THE "NON-STANDARD" WIRING OF THE CABLE, PER A MANUAL WIRE LIST i MADE MONTHS AGO. In short, this device is The Real Deal and deserves a place on the bench of every "Wire Tech" out there!
Review: Good unit but..... - I've tried the unit having some issues one is the flyer info is very poor and not clear. Other is the software few times does not accept the command forcing me to swith off and start again.

## Features

- 【4 in 1 Multi-function Tool 】 LAN cable tester, OPM, VFL and NCV combined on ONE tool. No more calls,no more costs, find and fix it by yourself.
- 【Accurate CAT5 CAT6 Cable Tester】NF-8508 network tester is a multifuctional tool which can do POE test, length measurement, wire locator and tests the faults of LAN network.
- 【Optical Power Meter Test】Connect the network cable under test to the transmitter port. The cable tracker automatically detects the fiber frequency, with the port indicator light flashing synchronously.
- 【Multifunctional Testing】Includes cable scanning, optical power meter, continuity testing, POE testing, QC testing, length measurement, VFL functionality, and NVC functionality.
- 【Must Tool for Home Using】 Non-contact voltage detecting, LED light and 1500mAh rechargeable lithium battery help you get the job done in a variety of environments.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CN6J9S7L |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #155,509 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #329 in Network & Cable Testers |
| Brand | KOLSOL |
| Color | Blue |
| Date First Available | November 13, 2023 |
| Item Weight | 1.28 pounds |
| Item model number | AT338 |
| Manufacturer | KOLSOL |
| Measurement Type | Optical Power Meter |
| Min. Operating Voltage | 60 Volts (DC) |
| Package Dimensions | 11.69 x 6.3 x 2.44 inches |
| Power Source | Battery Powered |
| Specification Met | CE, REACH, RoHS |
| Style | Compact |
| UPC | 889327070930 |
| Upper Temperature Rating | 85 Degrees Celsius |

## Product Details

- **Brand:** KOLSOL
- **Color:** Blue
- **Item Weight:** 0.58 Kilograms
- **Power Source:** Battery Powered
- **Style:** Compact

## Images

![Network Cable Tester with Optical Power Meter, CAT5 CAT6 Ethernet Tester with Visual Fault Locator, RJ11 RJ45 Lithium Battery PoE Wire Tracer with NCV & LED Light (Blue) - Image 1](https://m.media-amazon.com/images/I/71KPQrr0g1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It does the job!
*by K***S on August 19, 2020*

The device is Super-simple to use! 1) Install a 9V battery 2) Connect your "test" cable to the appropriate jacks on the Main UNit and "Remote" unit 3) Turn it on. The RED "POWER" LED will start blinking: FAST in the "ON" position, SLOW in the "S" position 4) Watch the GREEN LEDs on the Main unit sequence from "1" to "G", then repeat until you turn the Main unit OFF or disconnect the cable. Place the POWER switch in the "S" (Slow) position to better observe the LED sequencing. 5) The GREEN LEDs on the "Remote" unit will sequence with the Main unit's LEDs, with the "Remote" LEDs indicating which wires are connected to each other. IDEALLY, one ONE LED on each of the Main and "Remote" units will light in sequence. If NO LED on the "Remote" unit lights for a given Main unit LED, that wire IS NOT CONNECTED between the two points. READ THE INCLUDED DIRECTION SHEET to interpret other "LED 'patterns, etc.'" IMPORTANT: This tool is simply a GO/NOGO, end-to-end "continuity", cable checker (i.e., pin 1 goes to pin 1, pin 2 goes to pin 2, G goes to G, etc.) It ** IS NOT **: 1) a "volt meter" - ensure BOTH CABLE ENDS ARE ** UNPLUGGED ** (i.e., Free-Hanging), or you'll risk damaging/destroying the unit! 2) a wire "resistance" indicator - it simply indicates the presence/absence of a "conductive path" between each connector pin. Lit LEDs on BOTH units indicate a "conductive" path, UNLIT LED(s) on the "Remote" unit indicate NO "CONDUCTIVE" PATH between the two pins. 3) a "data speed" indicator - it does not indicate "data speed" through the cable (i.e., CAT3, CAT 5) 4) a "Data Logger" - it WILL NOT "store 'test results'" for later retrieval. If you want to record how the cable is "wired", WRITE DOWN the LED connection data for each wire. The "G" LEDs ** WILL NOT LIGHT ** if there's no "shield" connection between the plugs! "Shielded" (read "Expen$ive") RJ cables will have visible metal "shrouds" on the length of the RJ connectors AND they'll usually be more "rigid" than "Common, Run-Of-The-Mill" RJ cables. Treat this unit like you'd treat any other Measurement Tool. While it does have a degree of "ruggedness", it won't endure "abuse" (i.e., gnawing by a dog, repeated dropping on the floor, "play" by a toddler). UPDATE (8/20/20): I took the unit to work to test a "non-standard" ("Crossover") RJ45 patch cable. THE TESTER CORRECTLY "MAPPED" THE "NON-STANDARD" WIRING OF THE CABLE, PER A MANUAL WIRE LIST i MADE MONTHS AGO. In short, this device is The Real Deal and deserves a place on the bench of every "Wire Tech" out there!

### ⭐⭐⭐⭐ Good unit but.....
*by C***O on July 19, 2024*

I've tried the unit having some issues one is the flyer info is very poor and not clear. Other is the software few times does not accept the command forcing me to swith off and start again.

### ⭐⭐⭐⭐⭐ My second inexpensive tester, seems better
*by A***T on December 15, 2020*

I installed an extensive CAT6 cabling system in my house when we built it in 2002, over time some of my terminations fail, or I use untested runs. I had another brand of network cable tester before this one that seemed fine, but failed in less than a year. The KOLSOL tester had good reviews so I gave it a try. I can say that for the six months or so that I’ve owned it, all works well. Cables and runs are easy to test, and when the cable reports all lines correct I get Gig speed (it’s also found an occasional cross wire termination error). I’ve even tested some outdoor CAT7 runs with ground and the tester works well there too. Works well, No problems, Would recommend and buy again.

## Frequently Bought Together

- KOLSOL Network Cable Tester with 7 Wavelengths Optical Power Meter, CAT5 CAT6 Ethernet Tester with 10mw Visual Fault Locator, RJ11 RJ45 Lithium Battery PoE Wire Tracer with NCV & LED Light (Blue)
- Klein Tools VDV226-110 Ratcheting Modular Data Cable Crimper / Wire Stripper / Wire Cutter for RJ11/RJ12 Standard, RJ45 Pass-Thru Connectors
- Cable Matters 100-Pack Cat 6 Pass Through RJ45 Connectors (Cat 6 Ends / Cat6 Connector / RJ45 Modular Plugs/Ethernet Plugs/Network Connector) for Solid or Stranded UTP Ethernet Cable

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-22*