$DIRV The Security and Surveillance division provides surveillance systems, and digital video recording and services, including DVR recorders and cameras, video intercoms, NVR recorders and IP cameras, laser and video beam perimeter security products, motion detection and thermal imagery products, security design and consulting, remote control device management, equipment maintenance service plans, and access control solutions.


https://www.journaltranscript.com/2018/08/dir...teresting/