According to
SecurityInfoWatch.com:
Similar to the TSA’s body scanners, the Evolv Edge solution combines millimeter-wave technology and a number of other sensors to non-intrusively screen people as they walk through the machine for threats. Unlike those airport body scanners that require people to enter, turn 90 degrees and put their arms in the air while columns scan the entirety of their body to create an image, the Edge system screens subjects as they walk between two columns and can produce an analysis of what someone may be carrying in about a hundredth of a second.