sentry technology corporation is the world's leading manufacturer of traveling camera systems serving retail, industrial, logistics and transportation markets. the cctv product line features videorailway™, a proprietary cctv surveillance system with a camera carriage that travels along straight rail segments, curves and in continuous loops using the latest hd/ip video technology. the company's operationalvideo™ software manages 'out-of-stock', merchandising, product display and pricing compliance for retailers. we sell our products via a direct sales model in north america and through dealers and distributors in export markets. for further information, please visit our website at www.sentrytechnology.com.