HEAN company specializes in manufacturing and researching gas detection alarm in the environment, gas detector, gas alarm controller, toxic and harmful gas detection alarm, combustible gas detector, independent household gas alarm, air quality monitor, infrared gas analyzer. The products are widely used in Mining metallurgy, Archaeological exploration, Steel-making, Military, Petrochemical, Gas, Municipal fire-fighting, Refrigeration, Freighter, Pharmaceutical, Rubber, Dangerous chemicals storage and other industrial manufacturing sites requiring explosion prevention and poisoning prevention.