The parameters and datasheets below can only be applied to 1801-S2 series
> Max. 15 fps@4K.
> 120 dB true WDR, 3D NR.
> Smart IR Illumination.
> 60 m illumination distance.
> Built-in MIC (-A).
> 3.6 mm fixed lens (2.8/6 mm optional).
> CVI/CVBS/AHD/TVI switchable.
> IP67, 12 VDC.