The group's principal activities are to develop, produce and market digital security and surveillance systems and products utilizing video based cameras and microphones. Its products include secureview, viewstorage, plateview, faceview and webview. Its security systems are marketed under the trade name secureview that records video images digitally and permit their viewing remotely over the customer's existing cctv systems together with audio output over ordinary telephone lines. Viewstorage is a programmable vcr replacement device that record video output digitally for use with cctv systems. Plateview is a license plate recognition system that uses optical character recognition technology to provide an additional means of identifying individuals in a surveillance area for commercial or law enforcement. It markets its products principally to commercial users, residential users and enforcement agencies.