The Zistos Large Gun Bore Inspection Borescopes are designed to provide a detailed view of the condition of the insides of mortars, cannons and artillery tubes.  A built in DVR can record video (AVI) and still (JPEG) images from the push of a button for reports, archival data, and for near real time transmission (email, etc.) to technical experts as needed.  Bore measurement and erosion gauge options are available for bore diameters 57mm – 155mm.  The simple to assemble and use kits are provided in a single waterproof transport case and are rugged and field proven for deployment as needed, where needed.