BUFFALO, NEW YORK — Researchers at the University of Buffalo have developed a new biometric tool that scans your heart to unlock your phone or log onto your computer. <br /> <br />Scientists have designed a system that uses a low-level Doppler radar to identify the shape and size of a person's heart, Gadgets Now reported. <br /> <br />The system needs eight seconds to record the shape and person's heartbeat. It then continuously monitors the person's presence. <br /> <br />Researchers claim the system poses no health risks as the radar system uses very little power. <br /> <br />It is a passive, non-contact device, so people don't have to spend time authenticating themselves. <br /> <br />The heart scanner works on individuals up to a distance of 30 meters (98 ft). <br /> <br />The team now says they will work on shrinking down the system so it can be installed onto computer keyboards and smartphones.
