Network Cable Tester with Optical Power Meter VFL, CAT5 CAT6 Cable Toner Ethernet Cable Tester, RJ45 Network Tester for Phone, Ethernet, Video, PoE, Ethernet Tester, Wire Tracer Fiber Tester

Very useful and has a lot of functions. The head phones look cheap tho.

開封後電源をつけたらつかずアダプターを変えて試してもだめで初期不良品でした。みると返品先が中国となっており送料はこちらで負担することになっていました。その送料はAmazon負担で良いのではないでしょうか。

製品自体は優秀で、ネットワーク関係のケーブルでは、ほぼすべてのテストができます。（cate6まで） 特に気に入ったのが以下のとおり。 ・調べたいＬＡＮケーブルがＨＵＢのどこのポートに繋がっているかわかる。 ・ＬＡＮケーブルの長さが10cm単位でわかる。 ・PoEの電圧がわかる。 ・複数芯ある光ファイバーケーブル(SC端子・シングル・マルチ)のどの端子同士が繋がっているかがわかる。 ただ、マニュアルが英語のみなので、ネットで日本語解説のものを取ってくる必要があります。 また、残念ながら、液晶画面に保護シールが無く傷だらけだったのと、一番重要なＬＡＮのSCANポートがおかしかったので、返品。新品では無かった可能性がある。 追記：再度購入。傷もなく今回は新品と思われる。 性能に問題なし。

[UPDATE - 18Nov2025) Another use for this kit just came around. I was watching videos on guys repairing LED Christmas lights. Some use an NCV (Non-Contact Voltage) detector. I realized that this kit has a dual detector, for both Network signals AND voltage. In fact, there's an NCV button on it. I took it to a string of LEDs where one side is out and sure enough, this was able to detect where the voltage stopped. That was the bad LED! Seriously, I really like this kit and do highly recommend it. After having this now for a few months and using it with every cable I ran (and i ran, so far, over 16 CAT6 Solid Copper) I can say that this product is just excellent! Sometimes I had unexpected issues with the crimping tool, where, it seemed ok, but when on the network, it would totally fail or be "glitchy." This meter was able to detect the issue! Not only that, where the little cheap tester would say that the cable had good continuity, this meter could detect that it did not. In fact, I had a few times where the crimper caused a very light "short" in the wires (or even crossed the wires in the connector). Not only was this meter able to find it, but it was even able to confirm which end of the cable had the issue. Another feature that turns out to be seriously necessary is the Length test. I had a few cables that the meter reported as having a short. But where!? Well, what I did was to test length from each end, one at a time. The numbers reported revealed where the short was! Example, from one end, let's say, 6 wires tested the correct length, while 2 were not right, or tested as crossed or open. But test at the other end, now we had numbers that revealed which side the issue was on. In one case, I had a run that was about 40'. I hadn't noticed that the cable got a twist (kink) in it, but when the cable failed, the tester, using length from each end, revealed approximately where it was. I pulled the cable and sure enough, the kink was visible! I was able to cut the wire there, put a new connector on and problem solved. I also got to use the scanner function as my markers on a few cables fell off. I was easily able to confirm which wire at the wall was the wire going into the router. It just works! Seriously, if you are going to do a big job, like I did here with a full-house rewiring job, this device is a must-have! ________________ original review follows ________________________ I've had this for a few days now and I've tested cables in our setup. I'm very impressed how well this works and how many features it has at this price point. I have to do a full wiring of our house, greenhouse and garage, so this will be a necessity to test all connectors and wires. I do recommend this tester.

Buen probador de red para uso doméstico

The device has a Variable Frequency Laser (1Hz, 2Hz, and Static) that is good for shooting light to find faults in fiber or locate where a connection is on a patch panel. Also has an Optical Meter to test how strong the light coming in is from another Switch/Router/Media Converter. I keep this in my car and it's saved my but a few times when I ran into fiber issues and was able to do some quick troubleshooting. Just gotta remind myself that -16.00 db is the "normal" threshold for a good fiber connection. The Ethernet parts work well too. Positives: Flashing Port = checking for connectivity. Provides speed, duplex, etc. It's good to know if I am even getting a good connection to start with. QC = If I am actually getting a copper contact on the termination. Good for when I make my own cables. Cont = This requires you plugging it into the port on the Toner on the far end so you can see what the cable is doing. Good for finding breaks and splits. Length feature is pretty accurate. Sometimes it'll show a pair that's not broken or anything as being way off. So you kinda gotta use your own judgement in some of these cases, but that's what we network engineers are paid for, right? Cons: Often find myself needing to use the port on the Toner for the most accurate results for the CONT and I have had some issues with using the actual toner correctly. But this likely was user error since I rarely ever tone anything out. All in all, it's definitely worth when working on a large network where you have a mix of copper and fiber. Especially when the name-brand competition has their products in the THOUSANDS of dollars price-range. So this definitely does the trick for me. 10/10 recommend.

The cable test do not work, no reply from manufacturer after complaining and refuse to exchange do not buy except if you want a useless piece of equipment

No hace mediciones precisas. Si solo quieres ver números esta es la opción si quieres precisión compra calidad y marca reconocida con respaldo.