Industrial endoscope is mainly used for . Pipe diameter of 60-400mm municipal pipelines, residential homes, commercial buildings, factories and plants and other indoor pipeline video inspection. The system contains fiberglass rigid actuator cable, wire frame, HD camera, controller composition.
Probably cost a few tens of thousands of dollars, priced according to the configuration. It won't be expensive
Schroeder Industrial Borescope www.sld-cctv.com offers