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  • Dedesco Ltd Website
    (613) 838-4005
    5935 Ottawa St, Richmond, ON K0A 2Z0

    QEL designs and manufactures toxic and combustible gas detection equipment for commercial and industrial use. It serves customers in sectors such as mining, petrochemical, breweries, landfill, and aerospace, providing turnkey systems and sensors to protect occupants, property, and the environment. …

  • Quatrosense Environmental Ltd. Website Contacts
    (613) 838-4005
    5935 Ottawa St, Richmond, ON K0A 2Z0

    Founded in 1986, Quatrosense Environmental Ltd. (QEL) manufactures toxic and combustible gas detection equipment for commercial and industrial applications, including carbon monoxide monitoring in parking garages, ammonia detection in agriculture, and safety systems for NASA's U.S. Shuttle program.…