

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











| 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 |
K**S
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!
C**O
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.
A**T
My second inexpensive tester, seems better
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.
M**H
Network tracer
This network tracer works excellent tells me the length of Cable and where brakes are works. Excellent good product.
W**C
Great if all you need to know is if the cable is working
I had my doubts when I purchased this but I’m pleased to say it works exactly as expected. No it doesn’t have any fancy bells and whistles, but if all you are looking to do is confirm that you have connectivity on all the wires then for the price this is definitely worth it. I purchased this to verify that a cable run I was making from my attic to my basement was good. The tester returned that it was good, so I ran some speed tests using my laptop to verify and saw the speeds I expected.
H**R
cheap but it meets your need
good enough to check cat5 cable
J**M
There are better options available
Good for basic troubleshooting, but some functions do not work. The blink network port function does not work. The port tone feature also does not work very well. I have a 20 year old toning device that works much better. I'd recommend looking elsewhere for a better tester.
W**N
Great little cable tester.
Just moved into a new house and pulling new CAT6 cable. Somewhere in some box is my main tested, but can I find it, NO! Wanted something to do the job and not break the bank. Works well and appears well made. I am very pleased with it. If you are looking for a good cable tester this is the one to get.
R**S
It doesn't have any features to speak of but if all you're doing is checking cables for correct connection this is perfect. If signal strength and interference are issues you need a different tester.
A**R
Excellent piece of kit. Really helped during my DIY install for a homenetwork
B**T
Exactement ce qu'il me fallait pour tester mes. câbles RJ45 sur lesquels j'avais des doutes de fonctionnement. Cela m'a permis entre autre de voir que un de mes certissages n'était pas correct et c'est pourquoi mon point d'accès qui est dans mon jardin ne fonctionnait pas correctement. Et son prix est très bas en plus! Je recommande sans problème!
J**.
This item is very simple and works very well. The only Improvement that could be made are the instructions are unclear.
F**7
Very good, would buy again, no issues and lights are nice and bright which is great when using in daylight outside
Trustpilot
3 days ago
1 month ago