A999AModel CLG—A999A CLG—A999B CLG—A999C CLG—A999DImage Senor Device 1/4"SHARP CCD 1/4"SONY CCD 1/3"SHARP CCD 1/3"SONY CCDHorizontal Resolution 420TVL 420TVL 480TVL 480TVLMinimum IIIumination OLuxS/N Ratio ≥48dbWhite balance AutoSynchronization system Internal SynchronzationElectric shutter 1/50~1/10,000sVideo output 1.0vp-p 75ohm Power supply DC12V 850MA