Generic 5km DC 9V/1000mA -70 ~ +10 dBm Portable Optical Multi-Meter SC/FC/ST Interfaces Fiber MTV310 for CATV Test CCTV Test and Telecommunication

Nice power metre

This device is great. I got this for use in my optics lab for fiber coupling free space lasers into a fiber. It combines the visible laser source and power meter into one device. While slightly annoying to switch the fiber between the two, having to carry one device only is convenient. The power meter is not very well calibrated (measured to be ~30% off from a calibrated ThorLabs meter), and only goes up to something like 3mW. However, it has very nice low light sensitivity and can start working down to 2-3 nW. I've used this at 460 nm, 850 nm and 1450 nm and it will give you a relative reading at all three wavelengths. Overall, a very good device for helping with fiber coupling. Buying another one today.

Works well for me because of the light meter and red light for simple faulting,, not nedding 2 bits of kit. It has been working fine but did have one incident where the light reading did not look right

The meter is great and the time it took to get to me was impressive

It's a very simple product. The directions are surprisingly decent. I was expecting very bad English directions. The display is bright and clear. The quality of the casing is fairly rugged. I ran some fiber tests with it and I had no issues. The one thing that I wish it did have is adapters for the light emitting port. The adapter it comes with is only meant for the measuring detection port. No biggie.

I ordered a ripley light meter and it was a 2 week lead time. When the 2 weeks came, they extended it to 4 weeks, so that had me in a bad spot. I tried other vendors and nothing available quickly. I found this on Amazon for next day shipping. It arrived on time and it works. Seriously; it works. It has different wave lengths to measure and everything. I’m impressed with it. Now, how long it lasts I’m not sure. I’ll update later if an issue. But so far, it serves its purpose.