With incredible video quality, ease of use, and powerful networking tools, Revo Ultra is the very best that Revo has to offer. The Revo Ultra's superb video quality is based on IP technology. The RU82AT2KB2K-2T is a complete plug and play Smart HD surveillance system with 8 channel 4K smart NVR, 2TB and 4x 4K HD Indoor/outdoor Cameras. The Revo ultra 8 channel NVR is powerful featuring state of the art H.265 Compression, up to 4K Recording, 4K video output and 2TB Video Surveillance Grade HDD. The H.265 Indoor/Outdoor cameras feature massive True 4K Sensors, 2 times the resolution of 4MP Cameras. The built-in Professional Grade OSRAM LEDs and IR anti reflection glass strongly illuminate the scene up to an unprecedented 100 in total darkness. The Turret camera feature a 2.8 mm fixed lens which provides a 105° angle of view. The Bullet Camera feature a 4 mm lens which provides an 80° angle of view. The cameras are built for the outdoors capable of handling temperatures as cold -40°F and as hot as 140. View your Revo Ultra 4K cameras from anywhere. Using the Revo Ultra Mobile smartphone app, simply set up an account and then scan your NVRs QR code to begin mobile viewing. Access your Ultra NVR via the web using www.myrevocloud.com, compatible with Internet Explorer. Pre-event recording includes video before motion is detected providing valuable context leading up to the incident. Experience Peace of Mind with the ultimate high resolution IP technology from Revo. Color: Black/White.