Established in 1991, Automation Components Inc. is one of the leading manufacturers of sensors in the United States. Based in Middleton, Wis., the firm offers a range of sensor products, such as temperature, humidity, pressure, enthalpy, current sensors, semiconductors, thermistors and switches. Additionally, it provides air quality checking units, interface devices, power supply accessories, thermo wells, freeze stats, mounting plates, foot tubes and light-level sensors. Automation Components Inc. s list of distributors includes Commercial Controls of Georgia Inc., Stromquist & Company, Control Solutions & Design Inc., etc. The firm has installed sensors in well-known places, such as Walt Disney, Rockefeller Plaza, Caesar s Palace, The Sydney Opera House and The Library of Congress.