Sifang Optoelectronics (Wuhan) Instrument Co., Ltd. is a wholly-owned subsidiary of Sifang Optoelectronics Co., Ltd. (code 688665), established in 2010. Its predecessor was Hubei Liejin Automatic Control System Co., Ltd., abbreviated as Sifang Instrument. It is a high-tech enterprise specializing in providing gas composition and flow measurement solutions, serving fields such as environmental monitoring, process gas monitoring, and smart metering.

Based on the advantages of the core gas sensing technology platform of Sifang Optoelectronics, Hubei has developed a series of gas composition flow instruments using non dispersive infrared (NDIR), ultraviolet differential absorption spectroscopy (UV-DOAS), laser Raman (LRD), ultrasonic (Ultrasonic), thermal conductivity (TCD), light scattering detection (LSD) and other technical principles. The products are widely used in various industries such as environmental monitoring, metallurgy, coal chemical industry, biomass energy, etc., and play an important role in energy conservation and emission reduction.

The portable infrared biogas analyzer, microfluidic infrared flue gas analyzer, and infrared gas analyzer independently developed and produced by Sifang Instrument have successively obtained the National Key New Product Certificate. The infrared gas analyzer has won the Excellent Product Award of the Chinese Instrumentation Society, and its core technology has won the Hubei Province Invention Gold Award. Sifang Optoelectronics' "Research and Industrialization of Microfluidic Infrared Smoke Sensors" has been awarded the 2019 Industrial Strong Foundation Engineering Key "Product and Process" Application Plan Demonstration Project by the Ministry of Industry and Information Technology, and the company has been recognized as an application plan demonstration enterprise.

With long-term technological accumulation, strict quality system, and international vision, Sifang Instrument has exported its products to multiple countries and regions, and is moving towards becoming an international brand in the value-added application field of gas analysis instruments.