This instrument consists of two concentric cylinders, one sliding inside the other. A spherical glass lens, which has engraved measurements, is fitted to the end of the central cylinder and when pressed into the wet film, leaves a circular trace.

The diameter of the mark on the lens is measured and, using the supplied conversion table, the thickness of the coating can be easily assessed.

• Ideal for measuring the thickness of wet translucent products such as varnish, oils etc
• Measurement range of 2.25 - 360µm (0.09 - 14.17mils)