[freehorse]

Not saying this device is not cool, but one can also get this info easily in a computer, if you find out what to look for. One had presented a utility here some time ago with a menu bar icon showing this information

https://news.ycombinator.com/item?id=47972511

[joshstrange]

If I remember correctly, that application/your computer is simply reading what the device _claims_ it can do whereas this device tests it.

That app is probably a good place to start but I wouldn't trust it fully.