Zone Defense is an international manufacturer and distributor of quality heavy duty camera systems and wireless equipment. We provide various camera styles for multi-use applications, sensor systems, mobile digital video recorders (MDVR), driver recording, GPS satellite navigation equipment, pan tilt zoom (PTZ), graphical user interfaces (GUI)/ monitors, digital displays, mobile routers and cellular machine-to-machine (M2M) fleet tracking, telematics, fleet/ asset management and data collection systems. Zone Defense - We know quality.