Fiber Optic Cable Tester - Portable Optical Fiber Power Meter with Universal FC/SC/ST Interface and Built-in 2Mw Visual Fault Locator (OPM-VFL-1)

I work at a fiber optic internet company, it’s been very useful and it has all my needs on the field.We get optimeters for testing light, they take forever to turn on and there is no VFL on our models. It’s so convenient having instant access to check light levels that you can store in your pocket all the time. The VFL is handy and bright, only downside is after 5-10 minutes it automatically turns off. I wish if the VFL is on then it won’t turn off but it’s not a big deal.I highly recommend calibrating to your fiber optic wavelength and light levels, the out of box experience is good with about 3 DB off but it’s great for a general estimate when it’s not very important. After calibration even after a couple months it’s been accurate and works very well.The battery life is pretty good, it uses 2 AAA batteries and it lasts me about a month or bit more.I love the Ethernet tester that is built onto the removable slot on the bottom. On the field I also work with CAT 6 and it’s great having it on the tool, I never have to carry around a separate Ethernet tester or ever run to my truck to find it. It’s helped me out in situations I never expected.The only major downside I had is the screen. When I first bought it, after about a month half of the screen was not working and was affecting my readings. I exchanged it for a new one and been very careful with the screen and making sure it won’t get dropped or damaged. It’s been a couple months and it’s been working just as it’s new.Overall, I love this tool and it will be a must need for me when I’m on the field.

This thing is absolutely fantastic. Despite not being designed to read 1577 nm light, it still reads it quite accurately when set to 1550. I sometimes have only a1-2 db variance compared to a $150 light meter I have on hand. The visual fault locator is WONDERFULLY bright and works fantastic on APC and UPC connectors. I can easily determine where issues are, and it is frankly brighter than a $100 VFL I have. Fantastic features that are way better than a $28 package has any right to include. It feels sturdy, with a fairly hard rubber shell that I feel could easily handle drops onto concrete, unlike the $150 light meter I have. I use this more often than I use the other one now.

Great little meter for the money. The red fault locator light is super bright.

Works perfect. Hold down the “light” button to activate the red dot on the left port. Use it all day in professional atmosphere.

Best power meter good working

Good product, good material

Readings were off out of packaging. Followed directions from manual for calibration and dialed it in. LIght readings are where they should be. Now for the other functions, I had to do some playing around to figure out. The manual did not give straight forward instructions on how to run the VFL, or cat 5 testing. For VFL, if you hold the "Light" button down it turns the VFL function on. VFL was brighter than the ones I currently have on hand. Cat 5 tester will, you will need an ethernet cable plugged in each end following holding down another button. I honestly forgot what button I had held down. But it works, cut green cable and had shown that I had lost continuity on the correct wire severed. Was a nice buy for the price given. Would purchase another as it does not break the bank and works as should.Initially bought 12th of July.Update: 8 -6-23 bought a 2nd as it had been very handy.

It works great and I’m satisfied