The RU2-2.4-1000 from USA Borescopes is a Borescope with Depth of Field(DOF) 5 to 100 mm, Viewing Angle 0 Degree, Field of View(FOV) 40 Degree, Operating Temperature -10 to 80 Degree C, Probe / Insertion Tube Diameter 2.4 mm (0.094 Inches). More details for RU2-2.4-1000 can be seen below.