TL;DR: The device in question, Gene Radar, is a "tricorder" only in the sense that it's a mobile health diagnostic tool, not in the Star Trek sense of a handheld external scanner that will will give you information about a person or object from a distance without direct physical contact. Based on the video in the article, it still requires a blood sample to be inserted for direct analysis. Really cool, but not quite a Star Trek tricorder just yet.