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3.3 THE SENSORS
The sensors for humidity, air temperature and surface
temperature are located in the casing at the top of the gauge.
For accurate readings:
• Do not obstruct airflow through the slots in the casing around
the humidity and air temperature sensors.
• Keep your fingers away from the slots - the heat from your
body may affect readings.
• Allow the gauge some time to acclimatise once it is brought from a cold environment into a warm place
or vice versa.
To avoid damage:
• When measuring surface temperature DO NOT USE EXCESSIVE FORCE! A light contact between
the probe and the surface is sufficient. Using force does not increase the measuring speed or improve
the accuracy of the measurement, but it does wear and/or damage the sensor tip.
• Do not drag the surface temperature probe over the surface.
• Although the humidity and air temperature sensors are equipped with an integrated dust filter, it is
recommended to keep the gauge away from paint dust and dirt as much as possible.
Surface temperature
Humidity and
air temperature
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