The Observer™ 4100 digital video recorder (DVR) and 4112 hybrid video recorder (HVR) systems capture the information you need to protect your students. Threaded connectors and solid-state hard drives maximize durability while minimizing maintenance times. The 41 series camera at 700 TV lines and the 41H series at 720p resolution display sharp and clear video. The Observer 4112 utilizes innovative hybrid technology to support both analog cameras as well as new digital IP cameras, providing critical flexibility to unique installations. The Observer series includes additional features such as GPS mapping and the ability to wirelessly download video with advanced software to complete your school bus surveillance solution.