iMBAPrice NT-468 Network LAN Cable Tester for RJ45, RJ11, RJ12, CAT5, CAT6 UTP Wire Continuity Test Tool for Open, Short, and Crossed Wires, 5-Pack

If you need to test network cables for any reason, this tester is money very well spent! We added network cable to two floors in our home. We bought bulk cable and pass thru connectors and made our own cable runs. We learned quickly the advantage of pass thru connectors and a good crimper (Klein: https://www.amazon.com/Pass-Thru-Reliable-Klein-Tools-VDV226-110/dp/B076MGPQZQ/ref=sr_1_4?keywords=cat6+crimper&qid=1577109276&sr=8-4). There is no substitute for the right tool for the job. Several times we dropped both parts of the tester from ladders, so 5 ft or more. This had no effect on their performance. They don't claim that it is "rugged" but it stood up to our carelessness very nicely. We found it very useful that the remote unit slid apart easily so we could test cable runs from one room to another very easily. Obviously if you're testing an uninstalled cable with both ends easily accessible the tester works fine also. The switch runs the tests at two different speeds. If the fast speed goes a little fast you can slow it down to more easily watch the matching lights illuminate during testing. It's simple, works exactly the way it should and it's durable. I would buy another one or recommend one to anyone with a network cable test requirement. It's an essential tool in our tool bags!

This is basically just a continuity tester (testing each line in sequence, shield included), but it doesn't claim to be anything else. Works great for that. Uses a 9V battery.

This device has saved me some headache and cost verifying existing cables for wire damage/connectivity before replacing them. The device is simple, accurate, and very easy to use. The detachable remote piece is useful for verifying and/or finding downstream cable connectors. The plastic build of the device means it's light and easy to toss in a bag, but it also feels a little underwhelming. My only real issue with it is the detachable piece is on the looser side and falls off fairly easily, there isn't enough tension in the slot. I remedied this by putting a piece of masking tape along the inside edge to snug up the slot without negatively impacting its use. If you are looking for something simple, light, and low cost to simply check network cable ends, this will absolutely do the job. There is nothing deluxe about this, which is sort of the appeal.

I haven’t used it a lot. But if you need it, you need it. Worked good.

This is a great product! Simple to use, just what I wanted for home/DYI network wiring. Seems accurate, helped me find a bad connector. Recommended.

I used this cable tester to check a 350' Cat 6 underground cable to my Pole Barn. I wanted to make sure the cable was not damaged by rocks during burial, and also to verify that I attached the RJ-45 connectors properly. It worked perfectly and did find an issue with one of the connectors. Worth the money if you are installing a lot of Cat cable or installing your own connectors.

Easy to use and does the job well and is surprisingly inexpensive. I prefer using it in the "S" mode so that you have more time to verify the ordering, visually. Needs a 9V battery which isn't included, so make sure to get one.

Quick Summary It seems that there is a reasonable chance of getting a unit that doesn't work and if you do, the seller isn't good about returns and you'll have to engage with Amazon directly. My Experience Tester showed problems with lights #4 (main box LED lights up, remote box LED doesn't light) & #5 (neither box lights up). This was a working cable that I had made, so I tried another cable - same result. I tested a total of 6 of my hand-made cables, all known to work, with the same result on lights #4 & #5. Then I switched to testing manufactured cables, also all known to work, and got the same exact results with lights #4 & #5. I don't know if it's the internal circuitry that is problematic or the LED lights on the tester that are defective. In either case, it said Free Returns, so I opted to get an advance replacement with a return of the broken tester. Sounded good, but when I went to print the return label (see picture), it said that I had to pay the return shipping costs. That's ridiculous. So, I called Amazon, they promptly refunded the purchase price and automatically canceled the advance replacement. As Others Have Mentioned The instructions are useless, entertaining to try and figure out what they're trying to say in a few places perhaps, but useless as instructions. However, it's simple enough to use, plug one end of cable into main box and the other into the remote box and then turn the switch to "On" for a fast run through the lights or "S" for a slow run through the lights. You want to see simultaneous green lights on both main and remote boxes for each connector (lights 1 --> lights 8), which means that both the main and remote boxes need to be side by side (or at least close together) so you can see whether or not you get simultaneous green lights.

tout fonctionne parfaitement bien fait une analyse correcte dans tout les cas de figure

Perfect. Does everything it’s designed for.

有線LANの速度がとても遅いのでケーブルに問題があるかもしれないと言った記事を散見したので急ぎ購入しました。９V電池が必要です。親機と子機に分離できます。動画は先にスローモード、後に通常モードで撮影しました。 持っているケーブルはCAT６、６A、６準拠、７全て正常でした（長短１０本ほど）。一安心です。ということはプロバイダーが遅いと言うことがわかりました。プロバイダー（光回線マンションタイプ）との３年契約縛りが終わり次第乗り換え決定です。買って良かったです。

Fonctionne correctement, mais solidité et qualité à revoir...

Funciona bien