Seojin Instech

Seojin Instech is a South Korean manufacturer of field instrumentation for level and flow measurement, established in 1979 and headquartered in Seongnam, Gyeonggi Province. Its product lines include level switches, level transmitters, and flow measurement products, along with 80 GHz radar technology for precise measurement in smart industrial sites.

Its instruments are used across building automation, power plants, petrochemical facilities, nuclear power equipment, and aerospace applications, supporting the safety and efficiency of national core industries. Seojin Instech operates an accredited calibration center providing traceability to national standards, and holds certifications including ISO 9001, ISO 14001, ISO 45001, ISO 19443, and KEPIC-MN, EN, and SN nuclear quality assurance. Combining sensor, wireless communication, and self-diagnostic technologies, the company develops smart instrumentation for the digital transformation era and maintains domestic and overseas distributor networks alongside an online store.