Sound Level Meter, 30~130db 9.6" LCD Display Wall Hanging Decibel Noise Measuring Tester with Data Logger & Alarm (SW-525B)

I ordered the SW-525B (the one with the data logger) from Amazon Prime. I received a SW-525A. I sent it back. I repeated the order and got the wrong one again, so sent it back again. I then ordered through Amazon from the supplier rather than Amazon Prime. After some delay, the SW-525B arrived, even though it was in a box that said SW-525A with a barcode label on top saying SW-525B.The instructions are mostly in Chinese. The English instructions are short, incomplete and inaccurate. However, I got the device working without too many issues. Then I tried to download the logged data to my Windows 10 PC. Complete failure. The instructions do not even say where to find the required software. I asked support who provided a link. I downloaded the .rar file (so any non-techies will be in trouble already at this point). After expanding it, I ran the installer. As somebody who has previously written many installers, it was obvious to me that this one is half-baked. After installing, I tried running the software. It failed. After some investigation (even many techies would give up at this point) I located a DLL that had not been installed correctly and manually sorted that out. That got the software running, but the device itself was still not recognised even though it was plugged into the USB port. I searched the expanded .rar file and found some more instructions about how to install the driver. Unfortunately, they didn't work. At this point I gave up and started the return process on Amazon. Unfortunately, the return label that it wanted me to print is not pre-paid, and the device has to be sent back to China. I'll be contacting Amazon to see what they say, but I suspect I'm going to have to jump up and down about my legal rights if I'm not going to be left out of pocket after buying a device that is unfit for purpose.

Brilliant, I use this in my recording studio.Great price and excellent quality, easy to setup. Instructions not the greatest. So resorted to Youtube :-)