Earthly Mist of Tulsa Oklahoma has purchased and installed American Green smart vending machines for use in its Oklahoma dispensaries, according to a press release.Earthly Mist representative LeJuan Williams listed the reasons the company chose American Green AGM Systems over competitors:The AGM machine gives dispensaries the ability to add self-checkout as a convenience to customers while providing an additional security layer for stores.AGM's biometric identification feature is one of the best in the industry. AGM uses vein biometrics to identify the buyer and match them to a verified record originally obtained and encoded by a living human being when the member initially enrolls.AGM gives Earthly Mist management the ability to examine and track back-end sales and features a touchscreen interface to promote Earthly Mist products.