**This model has been discontinued by the manufacture, ESP. Check out our wide range of DVRs - Available Here** The HDV16R, HDV16R4TB and HDV16R8TB from ESP are some of the most comprehensive and affordable range of AHD (Analogue High Definition) CCTV security systems available in the market today. This DVR is the perfect base on which to grow your cutting edge security system. Truly on the cutting edge of modern specifications, the DigiviewHD has replaced the traditional digiview systems, and enters a new league of excellence when compared to its predecessor. Providing the user with crystal clear image quality, the ESP HDview range provides amazing value for electricians and security conscious home/business owners alike. What is AHD? AHD is the technology of HD/FullHD video, audio and control signal transmission via a regular coax cable at the distance of 500m without any latencies and losses. This system supports remote monitoring via Wi-Fi or hard-wired connection, and