Infrared ThermometerNoncontact temperature sensors include many different types, but all share one set of unique features: they are often involved with an optical property of materials called spectral emissivity or spectral emittance.

Just to be sure we are addressing the products you are seeking, be aware that these devices are called by a bewildering variety of names, starting (these days) with“Infrared Thermometers” – (a bit of a misnomer, since it is not all inclusive).

There’s some additional information on our original version of the About Temperature Sensors website. You can see an index to it here.

Otherwise, feel free to learn more at the updated version, now called “About Temperature & Moisture Sensors” ,at