Combining High Definition video quality with the convenience of Analog, Reva Aero is the best value in HD Surveillance. Reva Aero's breakthrough Analog HD technology combines the best of HD with the convenience and reliability of Analog at unbeatable value. Enjoy extended cable range - Reva Aero cameras can work at up to 1000ft of cable, perfect for covering larger buildings. The RA41BF-1T Reva Aero Surveillance System delivers 720p HD video quality over BNC Coaxial Cable and is backwards compatible with Analog cameras making it an ideal upgrade for an existing system. The REVO AERO 4 CH DVR is fast and powerful. It's equipped with a high-performance processor and support state of the art features. The Reva Aero Cameras also come equipped with IR LEDs for HD night-time surveillance. Reva Aero cameras are built for indoor and outdoor use, capable of handling a wide range of temperatures, rain or shine. Securely view your Reva Aero system from virtually anywhere. The Revere website and Reva Aero Smartphone app allows you to access your Reva Aero system. View your cameras, adjust settings, and even record video. Take advantage of 720p HD resolution, with the convenience and simplicity of Analog. Peace of Mind at exceptional value and convenience with Reva Aero.