Pickup device: 1/ 3-inch sharp super HAD CCD Picture elements ( H x V) : ( a) PAL: 512 x 582 ( b) NTSC: 512 x 492 Sensing area: 4.9 x 3.7mm System of signal: PAL/ NTSC Horizontal resolution: 420 TV lines Sync signal: INT Sync AGC control: auto Scanning system: 2: 1 interface ( H) frequency: PAL 15.625kHz, NTSC 15.734kHz ( V) frequency: PAL 50Hz, NTSC 59.94Hz Lens: 3.6 to 16mmn selectable White balance: auto tracking white balance Mirror control: normal/ reverse Electronic shutter: PAL 1/ 50 to 1/ 100, 000 ; NTSC 1/ 60 to 1/ 100, 000 S/ N ratio: more than 48dB Minimum illumination: 0Lux Gamma: 0.45 Video output: 1.0V ( p-p) 75 Power supply: 12V DC ( + 10% ) Operating current: 600mA Infrared wavelength: 60 units 850nm Infrared lamp irradiation distance: 50m Infrared lamps: night ( opening) / day ( turn off) Weight: 1.2kg Size ( L x W x H) : 260 x 110 x 110mm