Pickup Device SHARP 1/3" CCD SHARP 1/4" CCD SONY 1/4" CCD SONY 1/3" CCD SONY 1/3" Super HAD CCD Horizontal Resolution 420-480TVL 520TVL Sensing Area 1/3":4.9mm?.7mm / 1/4":3.6mm?.7mm Scanning System PAL(CCIR) / NTSC(EIA) Scanning System PAL:50Hz / NTSC:60Hz Number of Pixels PAL:512(H)?82(V) NTSC: 512(H)?92(V) PAL:500(H)?82(V) NTSC: 510(H)?92(V) PAL:752(H)?82(V) NTSC: 768(H)?94(V) Minimum lllumination 0.5Lux Backlight Compensation Auto Electronic Shutter PAL:1/50?/100，000S /NTSC:1/60?/100，000S AGC Auto Exposure Mode EE/AI Switchable S/N Ratio ≥48db White Balance Auto Follow Gamma Correction >0.45 Sync.System Internal Synchronization Video Out 1.0 V P-P/75& Power Supply DC12V?% Current / <=120mA Operation Temperature -10degree_+55degree Figure Dimension &107?2(H)mm