GW Security 1080P (1920&times;1080) HD-SDI Auto Tracking High Speed Dome PTZ Camera 2.1 Megapixel Pixels 20X Optical Zoom Waterproof Outdoor IR Night Vision 20X Optical Zoom, Full 360-Degree horizontal continuous rotation and 90-Degree tilt, no dead angle HD-SDI 2.1 megapixel with 4.7~94mm Focus Len, 256 preset position 1080P of Highest Resolution Day/Night video recording PTZ Camera 1 Year Warranty and Free Life Time Tech Support From U.S.A. (Include Bracket and 60 feet Premade Cable) This Pan Tilt Zoom Camera (PTZ) has an amazing auto tracker built right in. Auto tracking is the ability for the camera to follow an object such as a human or vehicle until that object is beyond the view of the camera