... 3)QC:5 times tests before delivery 4)Warranty:2Y SAMSUNG PTZ Subzero Temperature Camera Outdoor High Speed Dome cameraPan ... SCM-2271, 27X Optical & 16X Digital Zoom, Color 560TVL, Black 680TVL, ATR, ICRSAMSUNG SCM-2331, 33X Optical & 16X Digital ... ICRSAMSUNG SCM-2331, 37X Optical & 16X Digital Zoom, Color 560TVL, Black 680TVL, ATR, ICRHorizontal Resolution 680TVLPixelsPAL:976 (H)× 494(V) NTSC ...