Hubei Cubic-Ruiyi Instrument Co.,Ltd is a hi-tech enterprise specializing in the design, manufacture and sale of gas analyzers and systems, located at Optical valley, Wuhan in China, established in 2003. Cubic, with 160 staffs in the research for Non-dispersive infrared(NDIR), Thermo-conductivity(TCD), Chemiluminescent Detector(CLD), Flame Ionization Detector(FID),Ultrasonic and Laser Raman gas sensors, has been one of the most important innovate base of gas analysis equipments in China. Ruyi designs and manufactures infrared flue gas analyzer, infrared syngas analyzer, infrared biogas analyzer and automobile exhaust gas analyzer used in the applications from Industry process emission monitoring, anaerobic digestion, landfill gas, biogas or CDM monitoring to blast furnace, converter, coking and biomass or coal Gasification, automotive emission testing, etc. The latest developed products like ultrasonic oxygen meter, spirometer, CO2 sensor and CH4 sensor are launched on the market of medical and commercial use. At the same time, the customers from more than 40 countries such as USA, Russia, Brazil, India, South Korea, Italy, Belgium and Argentina etc are using gas sensors and gas analyzers from Cubic. In Oct 2011,  gas analyzer industrial zone has been put into use, with total area of 20,000.00 square meters. The company has four production lines of gas analyzers, two production lines of gas sensors and one complete set of equipment of analyzer system. With annual output of 24000 sets of gas analyzers and complete systems, Cubic is becoming the leading base for the R&D and production of gas analysis equipments in China.