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 “RU162PTZBNDL-2” is a complete plug and play HD surveillance system with 16 CH 4K NVR, 3TB & 8x 4MP HD Indoor/outdoor Bullet Cameras and 1x 22x 1080p professional grade PTZ camera. The REVO ULTRA 4K 2SATA 16CH NVR is powerful featuring state of the art H.265 Compression, up to 4K Recording and 4K video output. The H.265 Bullet Cameras feature massive 4 MP Sensors, 2 times the resolution of standard 1080p. 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 “RUCB36-1” Bullet Camera features a 4mm fixed lens that provides an 80° wide angle of view. The cameras are built for the outdoors capable of handling temperatures as hot as 140F and as cold as -40F. The PTZ camera with a ceiling mount features 1080p resolution, 22x Optical Zoom, 360° Pan Range and -15° ~+90° Tilt Range and delivers incredible video quality with the added powerful ability to zoom in and out remotely, endless Pan Range and incredible Tilt Range . The RUPTZ22-1ACM comes equipped with fifth generation infrared technology. The IR arrays strongly and evenly illuminate the scene up to an unprecedented 500 feet in total darkness. The polished look and intuitive feel of the Ultra's interface is a joy for everyday use whether you're using the NVR itself, the Mobile App, Computer Software or Browser.