Each part of this set can be sold separately: SC-7320, SC-7310, SC-732, and SC-731 Sensor: 1/3-inch Sony CCD TV system: PAL/NTSC Synchronization system: internal Resolution: 450, 540, 420, and 480TVL Video browse: 180 degrees rotate Angle of lens: Vertical: 170 degrees adjustable S/N ratio: ≥ 50dB Minimum illumination: 0.1 lux (F1.2) AGC: +18dB maximum BLC: on/off AEC: on/off Mirror: on/off Voltage: 12V DC (could change as 12V/24V) Power consumption: less than 250mA (12V DC)/160mA (24V AC) Lens: 3.5 to 8mm IR distance: 15m Operation temperature: -10 to 50 degree Celsius (within 85% RH) Storage temperature: -20 to to 65 degree Celsius(within 85% RH) Dimension: 92.5 x 139mm