Reading The Display - P3 International Mold Alert P0270 Operation Manual

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suggestions for Placement of the unit
There is an opening on the back of the unit, which allows it to be easily
hung from the wall. In addition, a base is provided for the unit to be
placed on any surface in a standing position.
Since the humidity level within rooms can vary greatly, the Mold
Alert should be placed in an area most likely subject to mold growth.
Problem areas are often basements, closets, surfaces near windows
and exterior walls. Anywhere in a home that is damp or has suffered
from water damage is also a prime location for mold growth.

reAding tHe disPlAy

Three values of measurement are displayed simultaneously.
The left column shows the indoor relative humidity (%), the middle
column indicates room temperature (°C/°F), and the right column
displays the dew point (Td).
The temperature can be displayed either in Fahrenheit or Celsius by
adjusting the °C/°F switch on the back of the unit. The audio alarm can
be activated using the "Al On / Al Off" switch on the back of the unit.
Risk of mold formation occurs at humidity levels exceeding 65%. When
this point is reached, the frowning face icon on the display will light up.
If the audio alarm is activated, it will also sound. An arrow pointing up
will be flashing next to the relative humidity display. The audio alarm
can be silenced by pressing any button.
When humidity levels are reduced below 65% the frowning face icon
will stop flashing and the alarm (if activated) will be silenced. The arrow
pointing up display will persist to indicate high humidity levels have
occured in the past. The arrow pointing up display can be reset by
pressing any button.