the lens may be soiled: the presence of dust or dirt filters the passage of the infrared emissions; as s consequence, Thermofocus will take a lower reading than the real body temperature.
It is necessary to clean the waveguide gently, using a cotton swab that has been slightly dampened with alcohol. Don’t use the thermometer for at least 30 minutes after cleaning.
The forehead can show signs of sweat or an oxygen mask is present or the subject is elderly. This can result in a low reading In all the above cases, you can take the temperature reading, again from a distance, on th eyelid (answer 10). – Oils or make-up con be present. This can results in a low reading. You can take the temperature reading, again from a distance, on the eyelid or on the neck (answer 10).
By V R|2020-05-27T11:35:30+02:00Settembre 8th, 2015|Commenti disabilitati su Sometime the temperature reading is too low. Why?