Changing the temperature scale
Your Braun ThermoScan is shipped with the Fahrenheit (°F) temperature scale activated. If you whish to switch to Celsius (°C) and/or back from Celsius to Fahrenheit, proceed as follows:
(1)Make sure the thermometer is turned off.
(2)Press and hold down the Start button (IRT 4020) or the «I/O» button (IRT 4520). After about
3 seconds the display will show this sequence: «°F» / «SET» / «°C» / «SET» ...
(3)Release the Start button / «I/O» button when the desired temperature scale is shown. There will be a short beep to confirm the new setting, then the thermometer is turned off automatically.
Care and cleaning
The probe tip is the most delicate part of the thermometer.
It has to be clean and intact to ensure accurate readings.
If the thermometer is ever accidentally used without a lens filter, clean the probe tip as follows:
Very gently wipe the surface with a cotton swab or soft cloth moistened with alcohol. After the alcohol has completely dried out, you can put a new lens filter on and take a temperature measurement.
If the probe tip is damaged, contact Braun.
Use a soft, dry cloth to clean the thermometer display and exterior.
Do not use abrasive cleaners. Never submerge this thermometer in water or any other liquid.
Store thermometer and lens filters in a dry location free from dust and contamination and away from direct sunlight.
Additional lens filters (LF 40) are available at most stores carrying Braun ThermoScan.
For more information, contact Braun ThermoScan Customer service at
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