This 10X Precision loupe with LED illumination has a scale that measures in both metric and imperial units. It is used to measure line values, angles, diameters, widths, prints, graphics and threads, etc. where accuracy is needed. A variety
of scales are available though it comes standard with cross hairs with metric and imperial scales, other are available for $25.00. The loupe has an adjustable focusing ring for pin-point clarity. The 8 LED lights can be used in daylight or in darkened conditions. The alloy metal body strong and durability. This is a quality product and it is covered by our extensive guarantee. We stock spare batteries should they be required.