Sentry Technology Corp. manufactures and sells traveling, robotic closed-circuit television (CCTV) systems designed for security applications. It offers traveling video systems that transmit images from pan-tilt-zoom (PTZ) cameras mounted on carriages traveling along ceiling rails, providing unobstructed views and facility-wide coverage. The company also provides a product portfolio that includes SmartTrack, a traveling carriage with two programmable PTZ cameras; and VideoRailway, a system featuring a single HD/IP video camera capable of traveling along straight and curved rail segments in a continuous loop, compatible with both analogue and digital networks. Its systems are operated using a joystick console, a cell phone or tablet and over the internet, and enable patrol from a central vantage point. The company serves retailers, distribution hubs, couriers, and public transportation facilities in North and South America, Africa, and Australia. The company was incorporated in 1996 and is based in Ronkonkoma, New York.