Model No. GD-SDB540 GD-SDB480 GD-SDB420
Resolution: 540TVL 480TVL 420TVL
Image Sensor: 1/3"SONY Super HAD CCD 1/3"SONY Super HAD CCD 1/3"SONY Super HAD CCD
Pixels: PAL: 795(H)×596(V), 752(H)×582(V),500(H)×582(V)
NTSC: 811(H)×508(V), 768(H)×494(V), 510(H)×492(V)
TV System: PAL/NTSC
Min Illumination: 0Lux
S/N Ratio: ≥ 48dB
Electronic Shutter: 1/50s(1/60s)-1/100,000s
Gamma Correction: 0.45
Gain Control: Auto
White Balance: Auto
Backlight compensation: Auto
Sync System: Internal Synchronization
Lens: 3.6mm/6mm/8mm/12mm Selectable
Video Output: 1.0vp-p.75Ω
IR Distance: 15m
Auto Switch: Day/Night
Power Supply: DC 12V/500MA
Current Consumption: ≤2.8W
Operating Temperature: -10℃～+50℃