Technical Specification Camera Image Sensor: 1/3"" CMOS Effective Pixels: 2688(H)×1520(V), 4.1MP Scanning System: Progressive Electronic Shutter Speed: PAL: 1/25~1/100000s NTSC: 1/30~1/100000s Minimum Illumination: 0.03Lux/F2.0, 30IRE, 0Lux IR on S/N Ratio: More than 65dB IR Distance: Up to 50m (164feet) IR On/Off Control: Auto / Manual IR LEDs: 1