GW Security VDG039APTZ 700TVL Auto Tracking High Speed Dome Security PTZ Camera 700 TV Lines, 27X Optical Zoom, Full 360-Degree horizontal continuous rotation and (-2 Degree-90 Degree) Degree Vertical range, no monitoring blind point 256 preset position, and can be appropriately each preset point title Color 1/4-Inch Super HAD II Image Sensor with 3.9 89.7.8mm Focus Len 1 Year Warranty and Free Life Time Tech Support From U.S.A. (Include Bracket and Power Supply) 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