... 4.Auto scanning and timed image switch Specifications: 4 Channel Vehicle color Quad Multiplexer: 1. 4 CH color quad multiplexer 2 ... . four camera input 3. Power supply:12~32v4 Channel Vehicle color Quad Multiplexer:1.Singal,dual,triple,quad image available ... available.16.Applicable for both indoor / outdoor security system and vehicle rear view system.17.New style, multi-function, easy installation ...