Door Station Technical Parameter a) Working voltage: DC12V?0% b) Static Current: 12mA c) Working current: 180mA d) Camera: 1/3" CCD/CMOS Viewing angel: 92.8? Min.luminance=0.1 Lux Lens: F=3.6 e) Environmental Temperature: ?5 to +70degrees f) Humidity: 45% to 95%