0.21inch Diameter WiFi Industrial Endoscope - 1080P High Resolution Technology
5.5MM Wireless Industrial Endoscopes
The Borescope can be used for the inspection and observation of toxic, nuclear radiation and places cannot be directly observed by human eyes like automobiles, aero engines, pipelines, and mechanical parts. Nondestructive detection can be realized without disassembly and shutdown of equipment.
To get the best image, the best observe distance is 1.2-8 inch.