DALLES is the well-known brand in the field of the CCTV surveillance.The products with the whole equipment of the CCTV surveillance have been included as following:Matrix Systems ?Intellegent And High Speed Dome Vidico?Digital Video Fiber Optics?Hard Disk Video Cassette Recorder (HD VCR)Multimedia Decoder?Ordinary Vidico?Network Surveillance And The Other Relative Equipmentetc.DALLES brings CCTV into the high level with the main products creating Chinese Translation ?Credit Code? Network And Digital . The perfect quality of the products has been assured by the American technology and internationalizing management. The quality system and the products have been certificated by CE?ETS?EMC?ISO9001?American Bell .