American Instrument Corporation has been servicing the WI and Northern IL area since 1969.  We are a calibration service provider focusing on Temperature Process Controls along with Brinell, Rockwell and Microhardness testing equipment. We also calibrate Dimensional Gages.  We are ISO/IEC 17025 compliant and we are A2LA accredited.  Some of the industries we service are foundries, food, beer, plastic and heat treat companies. Our office is located in Hartland, WI which includes a calibration lab so we may service equipment in-house as well.