just plug in any four cameras...

The Swann Quad Processor is a low cost, convenient security solution for monitoring up to four areas in your home or business at once. Simply connect the four security cameras and the Swann Quad Processor to any TV, VCR or Swann security monitor, and you can keep an eye on all surveillenced areas from one central location!
Choose between a split screen (4 cameras at once) in black & white or see each camera view individually in color*! The Swann Quad Processor also features an auto-switch function allowing you to scan between all camera views (including the split screen) in four-
second intervals.

FEATURES

• View 4 cameras at once in black & white, or switch between 4 individual camera views in color*
• Works with any TV, VCR, or security monitor
• Easy to use - plug & play
• RCA & BNC inputs
• Ideal for use in shops, offices, homes, and warehouses
• *Color views can only be obtained if a color camera is used

Please click the manufacturer's website link for more information regarding this product.