Infrared physicsInfrared (IR) radiation is 'redder than red', and so cannot easily be seen, but otherwise it is just like ordinary light. This fact will be familiar to anyone who has ever felt the heat radiated from a hot oven, and has observed the dark red glow arising when the heat becomes stronger: Some of the heat radiation becomes visible when the temperature increases. Thus, infrared radiation is essentially heat radiation. Read moreReliable Gas DetectionThe unique properties of the patented single-pulse infrared gas detector eliminate the need for frequent recalibrations and problems with long term drift. And does so with greatly improved sensitivity, resolution and time response. Thanks to the Infra Rapid IR source, the new technology secures correct readings throughout the product's lifetime.more...See more text