Came across this yesterday. May be a great way to check materials for containing safe/unsafe materials.
The device works off near IR spectroscopy.
They don’t have a lot of what I consider actual spec info out there and not quite happy how the seem to keep a lot info locked down, but may be a promising method long term.
In their forum there is a thread or two on measurement repeatability, and accuracy , all details I wish had more info published.
Check the business link for more info as well.
I’ll need to do a bit more background research before plonking down 250 or 500 bucks, but it’s an intriguing device. If it works well, may be a great gf 2.0 add on (scan prior to laser to give a warning if the material is unknown or unsafe )