Located in Irvine, California, International Sensor Technology (IST) manufactures both the sensors and the instrumentation used to detect over 150 different toxic and combustible gases for area quality and safety applications. Since 1972, IST instruments have served a large nd diverse customer base around the world, with users including refineries, chemical plants, semiconductor facilities, hospitals, food and beverage companies, and many others. In fact, IST equipment was chosen by NASA for use