Pickup device: 1/ 3-inch Sony super HAD CCD with two CCDs ( for day and night / color and B/ W) Picture elements ( H x V) : PAL: 752 x 582 NTSC: 768 x 492 Sensing area: 4.9 x 3.7mm System of signal: PAL/ NTSC Horizontal resolution: 480 TV lines AGC control: auto Scanning system: 2: 1 interface Horizontal frequency: PAL: 15.625kHz NTSC: 15.734kHz Vertical frequency: PAL: 50Hz NTSC: 59.94Hz Lens: 3.6 to 16mm selectable White balance: auto tracking white balance Mirror control: normal/ reverse S/ N ratio: more than 48dB Minimum illumination: 0Lux Gamma: 0.45 Power supply: 12V DC Operating current: 1, 200mA Infrared wavelength: 189 units, 850Nm Infrared lamps irradiation distance: 150m