IST Corporation, located in California, USA, specializes in the production of gas sensors and gas detection equipment. Since 1972, gas monitors have been provided to a wide range of users. IST offers a full range of gas detection instruments, including portable, single - and multipoint stationary instruments, individual gas sensing transmitters, and computerized gas monitoring systems. IST has a wide selection of sensors from all types of sensor technologies available today, including IST patented solid-state sensors, electrochemical sensors, infrared sensors, photoionization detectors, and catalytic sensors. At the same time, IST's products have received the People's Republic of China Certificate of Approval for the form of Measuring instruments, with many advantages such as safety, reliability, responsiveness, low maintenance, automatic correction, and affordability.