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Raytheon 250 Thermal Imager

 

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The Palm IR250 is a single band hand-held scanner. All natural and manmade objects emit infrared energy; the hotter they are, the more infrared energy they emit. Thermal imaging provides the ability to see and record temperature differences. Infrared shares many of the properties of visible light, but its different wavelength has several unique characteristics. For instance, materials that are opaque to visible light may be transparent to infrared and vice versa. Infrared is less subject to scattering and absorption by smoke or dust than visible light and infrared cannot be seen by the human eye. Unlike visible light, which is given off by ordinary objects only at very high temperatures, infrared is emitted by all objects at ordinary temperatures.