With a lazer on the side point it at any substance and it uses spectroscopy to tell you what any substance is and what % purity it is, and exsactly what its cut with and at what % its its cut at. It is handheld the size of a GPS.

https://ift.tt/2NXrVhw

Submitted July 31, 2018 at 11:08PM by allkey143 https://ift.tt/2LH821D