... 420 line and 480 line fixed camera, four times seek, 10 times seek (domestic, SONY, SAMSUNG camera)14 Guarding function, after the ... 180 degrees/S most accurate positioningModel Number ST-IR8505 MINI HIGH SPEED DOME CAMERAImage sensor1/4 CCDSignal modePAL/NTSCHorizontal ... resolutionColor 420TVL,B/W600TVLMinimum illuminationColor to B/W,Color 0.05LUX,B/W 0.001LUXS/N ratio≥50dBBackligh ...