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Hoi Cin_zia9
- Press the on/off button and keep it pressed.
After approx. 3 seconds, the following appears on the display.
display: °C / SET / °F / SET.
- Release the on/off button when the desired temperature scale is displayed.
A short beep sounds to confirm the new setting, and the thermometer
switches off automatically
Or also: http://www.service-downloads.com/data/files/hot/manuals/thermometers/irt6020_6520_westerneurope_ownermanual_04mar14.pdf
Cheers and happy measuring
Because superbright display makes you blind so you can't see the ear well. On the back side there is no light source to make the process easier. Good looking at the day time, terribly bad design for the night. I woudn't buy again.
:) hehehe your question is very amusing, for me as a health professional.
If you only use it in the family, buy one without disposable protective caps and clean it after use.
However, if you are looking for high hygiene, the protective caps are meant for one-time use.
You can do this like you do with toothbrushes, but the chances of them falling on the floor or getting mixed up are very high.
That is true. But the difference makes the colour of the result. For a child older than 3 months, the fever threshold is lower than for a child younger than 3 months. That's why there are colour gradations.