..fractions to 10 microns..
Accurate Technology (ATI) manufactures ProScale, ProScaleABS, and other linear measuring devices based on capacitive coupling technology (the same technology used in high accuracy digital calipers).
The company's first product was a general purpose measuring device called ProScale. As the company expanded, the product line grew, with new products added every year. In 1996, ATI introduced ProScaleABS, an absolute position measuring device. Absolute systems use a more robust and sophisticated method to measure position, resulting in a high immunity to electrical interference and one that does not forget its position.