Est. 1917, IGD are the world's oldest, independent gas detection manufacture. With over a century of gas detection experience we manufacture a complete range of gas monitors that provide users with detectably better detection. We are also the home of true addressable and digital gas detectors. We manufacture fixed gas detectors for over 700 gases and vapours and also provide a vast range of portable monitors. You can learn more about our range of detectors on our website here: https://www.internationalgasdetectors.com/