What is a Monitor?

Monitor is the standard device of video out, which is essential for us to browse image from camera. Monitors can be color or B/W(black/white), and dimensions can be 9”、10”、12”、14”、15”、17” and 21” ,but 21” is found mostly. As the same as camera, monitor has resolution which actually demands in accordance with camera. Besides, some monitors serve audio input, S-video input and RGB proportion input, however, nearly all functions provide for image procession except audio input function serving surveillance system.