HEIVISION has been involved in the business of security video technology for more than 15 years. We are one of companies that started to research and develop digital video since 1990&＃39;s. The digital video surveillance systems developed & integrated by HEIVISON have been widely applied in banks, school, supermarket, office building, residential building etc. The most prominent clients include Asian Bank, First Central Savings Bank, Chinatrust Bank USA, Staten Island College, McDonalds, Burger King, Dunkin Donuts, Subway etc. In last four years, HEIVISION has been engaged in research and development of new security video surveillance technology: megapixel HD camera and network video recorder (NVR). Our megapixel HD video surveillance products have been in market for more than two years, which has established that our products are stable and the video quality is terrific. HEIVISION now is one of the pioneer firms that have stepped on the early stage of megapixel HD video security surveillance technology that will soon be used to replace analog camera and DVR. HEIVISION&＃39;s headquarter and customer service center are located in New York city, which can guarantee to provides platinum quality of security video equipment for our customers and prompt customer service. We have 24 hours 1-800 TOLL free customer service and provide life time technical support for our products. Meanwhile, HEIVISION frequently provides free training and demo for our customers. We are able to send our technicians to the customer&＃39;s office and working site for solving technical issue, demonstration and training of our products especially megapixel HD video surveillance equipment. We offer two years warranty for our most products. HEIVISION has it&＃39;s own factory in China, which greatly reduces the production cost. Therefore we can assign more fund to research our technology and improve the quality of our products.