Pocket Microscope 40x w/illumination A perfect carry-with microscope with magnification of 40x. Eyepiece has scale with 0.1mm graduation and a measurement range of 4mm. Has a built in light source. In addition, a clear acrylic stand allows ambient light to the object under examination. Operates on two AA batteries not included. Ideal for on site detailed examination of small areas and objects. Useful for engineers, tool makers, quality control inspectors, field researchers etc. Case included.