The Milliscope HD from Zibra Corporation is a Borescope with Viewing Angle 0 to 110 Degree, Probe / Insertion Tube Diameter 0.35 to 3.1 mm (Scope), Probe / Insertion Tube Length 61 to 10000 mm, Probe / Insertion Tube Length 61 to 10000 mm. More details for Milliscope HD can be seen below.