NOYAFA NF-8508 Network Cable Tester with Optical Power Meter, CAT5 CAT6 Cable Toner Ethernet Cable Tester, RJ45 Network Tester, VFL PoE QC Test Wire Tracer Port Flashing 200M Length Test

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.

Good unit works well use every day quality is ok could be a little better but the functionality is goodPrice is average easy to use

This unit actually works very well. The issue I have is lack of instructions. I was able to find several non company supported videos using this meter. That’s the only reason I bought it. 4 stars because the lack of clear instructions.

I needed to replace my old toner/tester. I came across this one that a co-worked used.I love the functionality that it provides. I can check ethernet cables, tone, as well as a few other options that I don’t really use.Both feel good in the hand, and made well.The screen is easy to read. You select the test, and it shows you which connector to use. Both have rechargeable batteries. Like others have said, not all charging cables work. I opted to use the supplied cable. No issues so far.For the price, it’s worth it.

Bought this, it's not a multimeter for electrical / electronics work as advertised- Volt, Ohm, Diode, Temperature etc. Its gives erroneous CAT cable continuity readings right out of the box: showed crossed pairs / wire on most readings even new cable and the one they sent in the box as well ! Returned it. I bought the cheaper version from them and it works like a charm so far, love it. Seems the higher end products are faulty - bought 2 different upper level ones , same brand, and had to return them.Called Amazon and gave them an update on the false advertisement on the above product, that didn't work, seems Amazon isnt correcting seller on that issue. Not sure why not.Update: The lower end products by the same manufacturer continues to impress me. I bought the midrange Tester they offered and have been using it for months now without any issue. Love the high end features at a bargain price, like cable length measurements / break distances - TDR, also Hub blink, POE testing and digital POE Scanning function over live phone and active network Ethernet cables.

I do a lot of network support, but I don’t make my whole living from it. So I can’t afford $5000-$10000 tools from the big manufacturers.But I still need to check fibers and Cat 5/6 cables and this unit does both very well.In particular, having the optical power meter means I can plug in a fiber and quickly find out if light is getting through from the other end. I can also get a feel for how strong the signal is. I’m sure it is not calibrated precisely, but it tells me if the circuit is in good shape or if it needs work.For ethernet cables, it does simple testing to ensure all pairs are connected right—but that is common. This one also allows you to estimate cable length (TDR functionality).Better yet, you can use it to check if a cable is live, tell what speed got negotiated and even find out of POE (power over ethernet) is active. This is something I do all the time—a basic “is this live?” test. But before I got this, I had to bring along a computer with an Ethernet adapter dongle.The screen is color and is very clear. My only minor frustration is that it looks like it should be a touchscreen, but it’s not. You have to navigate using buttons. They never said it was a touchscreen, so it is fine.FYI, the most common kind of fiber jack/plug is called LC. This kit has a different jack on it called SC, so be sure to pick up a patch cable and/or adapter that converts from SC to LC. These are not expensive.