Our company manufacture the product as following. 1.Product for industrial safety and hygiene a.Gas detector tube to measure gas concentration easily (more than 250 kinds of gases) b.Portable gas detector to monitor combustible gas, Hydrogen sulphide, and Oxygen c.Fixed type gas detection alarm system to monitor gas in 24 hours a day. 2.Product to control the life environment and safety a.CO, CO2 monitor for office and building, b.Detector for indoor air quality c.Breath alcohol checker to monitor drinking driving 3.Product to protect the atmospheric air a.Automobile exhaust gas analyzer