The Borescope is used by placing the mirror into any location that requires inspection. The sight tube is placed against the eye and held with one hand, and the handle is held with the other hand. This permits the handle to be adjusted on the sight tube by sliding mirror's view. Adjustments to the alignment of the mirror so that it can be seen through the sight tube are made by twisting the battery pack while holding the handle and/or by slightly bending the tips shaft.
The sight tube provides a direct view of the mirror without distraction from unwanted light.
The lighted mirror shaft can then be sent to accommodate the viewing environment.