... compressions,GPS,black box,mass storage hard disk. Widely used for security and surveillance in the domain of Mobile,Steamship,Train ... 4channels(PAL), PWL:1.0Vp-p,Impedance:75Ω,Support monochrome/color cameraVideo output: 1channel(PAL),PWL:1.0Vp-p,Impedance:75 ... over-voltage protection,Delay power off function.Power output:DC12V for camera, pickup or velocity sensorAnti-vibration design:double Anti- ...