Our ( metal detector ) is the best detection system on earth, the SecureScan. It is passive,(no field!) It takes video stills and overlays graphic targets for suspect items. It archives all scans and photos. It is the only pc based system and that makes it infinatley integrateable. It is software based so upgrade costs are low. No concealed weapons detection system comes close to our performance! Our DVR digital video recorder is an expandable,remotely viewable, trplex machine with a very, very good features-to-price ratio for you the professional.ViewMaxx can record up to 200 fps. Memory easily expandable.