AHD CCTV cameras, also known as Analog HD CCTV cameras, are capable of capturing high definition video surveillance at 720p and 1080p resolutions. We sell both 720p HD cameras and 1080p HD cameras, all of which can be seen below. AHD security cameras must be used with a AHD compatible DVR. CCTV Camera Pros supplies hybrid AHD / CCTV DVRs that work with both AHD and traditional analog CCTV cameras so that users can mix and match a combinations of both camera types. We highly recommend iDVR-PRO hybrid DVRs for use with these cameras. If you are unfamiliar with the difference between AHD and traditional analog CCTV camera resolution, you can learn more about AHD vs CCTV here. You can also watch a video that compares SD and HD surveillance here and demo surveillance videos here.