Special Features:

Direction of view 45 degrees to 115 degrees; insertion tube temperature -20 to +150 degrees c (-4 to +302 degrees f); complete instrument -20 to +50 c (-4 to -122 degrees f); full 370 degrees orbital scan and focusing as well as the standard 32mm eyepiece for attachement to cctv

Properties:

A viewing device used to visually inspect items such as cannon bores, internal combustion engine cylinder walls, propellant perforations of rocket motors or similar items, for defects of manufacture, corrosion, scars, erosion, etc., without the necessity of disassembling the item(s). It may or may not have extension tubes to cover the various ranges of inspection. The item is basically a straight-tube telescope using a mirror or prism.