Mace NQC-700 Color Quad Processor (Discontinued by Manufacturer) View color video from up to 4 cameras simultaneously or individually in sequence on one monitor Includes VCR input/output for recording and playback of video Features resolution of up to 30 fps with 760 x 480 effective pixels Alarm buzzer sounds automatically with the loss of a video signal Utilizes BNC-type connectors for video inputs and runs on 12-volt DC power