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You may be thinking that an infrared thermometer may be recommended in certain applications but that you could use other types of thermometers. However, infrared thermometers are really important and if your application requires an infrared thermometer then you really should use one because otherwise you will not get the correct reading. Conventional sensors do not work in many applications, especially those that are moving, so in these cases an infrared thermometer is indispensable. If your application involves a moving object like moving machinery, rollers, or a conveyor belt or in a situation where you cannot touch the object because it is contaminated or hazardous, then an infrared thermometer is necessary. The same goes for distances that are too far or situations where temperatures are extremely high. Now that you know about infrared thermometers, often called an IR thermometer for short, then you can easily understand why these thermometers are so important. So, back to the original question of whether or not infrared thermometers are really important. If you are working with an application like one of those outlined above then they are very important, but in other situations you could use a different type of thermometer.