The Cleveland Clinic says that when checking body temperature, regular digital thermometers, as well as ear and forehead thermometers are accurate and easy to read. A touch forehead option is more accurate than a no-touch option. Other types of thermometers do not provide accurate readings and are not recommended. For industrial uses, probe thermometers provide the most accurate reading since they directly touch the surface. Infrared ones should be used in situations where it is too dangerous to get close to the object you are measuring. They are a safe option when dealing with extremes and are still accurate. Do not use an industrial thermometer to check body temperature. Industrial thermometers tend to have a margin of error of around 5 degrees, which is too high to be useful in checking body temperature. Some may also expose people to harmful substances. Keep in mind that whether personal or industrial, a no-contact option can be affected by particles in the air and is not always as accurate. Use contact options whenever possible.