I have an E-MAIL in to them regarding Press release. Will post as soon as I get a response. The New zNOSE does have the ability to determine THC percentage in MJ. That news came out on there web site in November 2016.
Go to there website at estcal.com then click on blog at the top of the page. Scroll down a short way and you will see all the new capabilities of the zNOSE.