Security Vision offers Video Switcher. Security Vision manufactures AC power converters for cameras, DC power converters for cameras, RFID cards and readers, speed diallers, heat sensors, pan tilt units, speed domes, etc. The Video Switcher is used to manage multiple camera inputs and a single monitor output that displays camera images in sequential lope. With Video Switcher, dwell time of camera image retention on screen could be programmed along with hold and bypass functions.