Product Model LT-T660 LT-T661 LT-T662 LT-T663 LT-T664 LT-T665 sensor 1/4 Sony CCD 1/3 Sony Super HAD CCD 1/3 Sony EXview HAD CCD Resolution 420 TVLine 480 TVLine 540 TVLine 650 the TVLine 700 TVLine PAL pixel pixel 537 (H) x 505 (V) 537 (H) × 597 (V) 795 (H) × 596 (V) 976 (H) × 582 (V) NTSC 811 (H) x 508 ( V) 976 (H) × 494 (V) Signal System PAL (default) / NTSC intelligent LED infrared burst against excessive Minimum Illumination 0 Lux (IR LED ON) Minimum Illumination: 0.0001Lux lens specification standard 4-9mm manual focus Lens D-WDR digital wide dynamic infrared lights built-in 60 ￠ 5 enhanced infrared lamp low power consumption, wide voltage power supply design, support 8 languages ??Shell Material Aluminum Power input voltage range DC9-20V IR distance 50 meters of the OSD menu video output lightning protection design waterproof rating IP66 + intelligent motion detection can be synchronized output alarm trigger signal electronic shutter 1/50 (1/60) to 1/10, 000 Sec. the four districts smart motion detection signal-to-noise ratio> 48dB (Automatic Gain Close) 8 zone privacy masking Gamma Correction 0.45 to support glare inhibit function Backlight compensation Automatic Gain Compensation (Auto) Auto (Auto) White Balance Auto (Auto) Video Output 1.0 Vp-p (75 Ohms, composite) power required DC12V-1000mA temperature -20 ℃ ~ 50 ℃ Dimensions 170mm (L) X 95 (mm) X 105mm (H) Product weight 1075 g