i3 's Annexxus Ax47DC megapixel IP camera features 1.3MP video resolution. This dome camera comes with a fixed 2.1mm lens, providing the widest camera view to maximize the accuracy of traffic count. For best results, mount 8 feet above the floor and 4 feet back from the center of the door. Note: For traffic count, SRX-Pro Server VC (VisionCount) license must be purchased (sold separately). This camera delivers triple streaming performance and supports H.264 and Motion JPEG video compression. H.264 codec allows for faster and more efficient video transmission over the network. This moisture-, dust- and vandal-resistant dome camera is IP67-certified and IK09-compliant and comes in an aluminum casing. Annexxus 47DC model requires PoE power. The Ax47DC camera is designed specifically for indoor Door Counting applications in combination with i3 's SRX-Pro and CMS.