4.5"Plastic IR Dome/23IR/Night Vision Distance20m /3.6mm　Lens

apply to indoor installation,infrared night vision function，using during day and night，24 real continuous monitor,23IR,night vision distance:20m

automatic gain control (AGC)

with automatic gain control(AGC)circuit，get a clear image on the low illumination conditions

electronic shutter

colour CCD video camera integrated with automatic electronic shutter function，velocity: 1/100，000s。

Gamma characteristics

Gamma characteristics of colour CCD video camera（Gamma characteristics）:0.45。

choosing camera lens with different focal lengths according to need

focal length of camera lens：available