SPECIFICATIONS   技术指标：   MODEL YH-WB805S YH-WB805SH Pickup device 1/3＂Color Sony CCD Number of pixels PAL:512(H)X582(V)  NTSC:512(H)X492(V) PAL:752(H)×582(V)   NTS：752(H)×492(V) System of signal NTSC/PAL  Horizontal resolution 450 TV Line 540 TV Line Minimum illumination 0Lux/F1.2 (IR ON) Lens 6mm/8mm/12mm(Optional) Backlight compensation Auto Electronic shutter 1/50(1/60)～1/100,000sec S/N ratio ＞48dB ＞52dB Gamma correction ＞0.45 Operation temperature -20℃~50℃ Sync.system Internal Video output ≤1.0Vp-p/75Ω Power supply DC 12V,1A Dimensions(mm) 210(L)X110(W)X105(H) Wavelength 850nm Weight(g) 1000g IR View Distance With 1pcs High Power LED Array, 30～40M   产品规格和外观如有更新，恕不另行通知。Design and specification are subject to changes without prior notice.