 Plymouth, Massachusetts--Newsfile Corp. - February 9, 2021 - Plymouth Rock Technologies Inc. CSE: PRT OTCQB: PLRTF FSE: 4XA WKN: A2N8RH Plymouth Rock, PRT, or the Company a leader in developing threat detection and unmanned technologies, is pleased to announce that its CODA-1Cognitive Object Detection Apparatus system has undergone further successful testing for detection of various concealed weaponry on a person at our PRT laboratories.CODA is a uniquely designed, ultra-compact radar device that can be utilized... 