we offer products include Compression Card ,Video Server, stand-alone DVR,PC DVR, Video Camera of CCD,CMOS, wired, wireless series xxxxx Integrated with science, industry and trade, our company has enjoyed a high reputation due to its powerful strength since its establishment in China. Based on the essence of " mastery of technology independence" combined with market, Currently .we focus mainly on offering Compression Card and manufacturing CCM Character Superimposer, Intelligence Controller ,lift floor monitor ,RS485 sharing device. they are obtained deeply the customer high praise and the widespread application in various situation and occasions, such as Bank, Telecommunication, Electric power, Transportation, City Surveillance, Building , Residence area, Factory and so on.