Switching between wireless sensor channels
If more than one wireless sensor is paired with the main unit, press the SET / CH button to display the
temperature, relative humidity and maximum / minimum measured values of the sensors on each channel.
To switch channels automatically, press the SET / CH button until the icon appears next to the
channel number on the display of the main unit. Channels will switch automatically after 5 seconds.
Display of barometric pressure values
In normal mode, press the BARO. / - button to display the measured values of barometric pressure for the
last 12 hours. Press the BARO. / - button repeatedly to display the measured average barometric pressure
value over the last 24 hours, 48 hours and 72 hours, respectively.
To switch between absolute (ABS) and relative (REL) barometric pressure display, hold down the BARO. / -
button in normal mode for 2 seconds.
Barometric pressure (atmospheric pressure) is the force exerted by the Earth's atmosphere on a unit area
at a given location. Barometric pressure gradually decreases with increasing altitude.
Meteorologists use barometers to measure barometric pressure. Fluctuations in barometric pressure are
affected by the weather, and therefore it is possible to predict the weather by measuring its changes.
NOTE:
1) The default relative barometric pressure is 1013 hPa (29.91 inHg), which is the average
barometric pressure.
2) The built-in barometer records changes in absolute barometric pressure. Based on the collected
data, it forecasts the weather for the next 12 to 24 hours. Therefore, the weather forecast icons
may change one hour after the weather station was powered up.
3) The relative barometric pressure is based on conversion to sea level and will change together
with changes in absolute barometric pressure one hour after the meteorological station is put
into operation.
Display of dew point value
To display the dew point of the selected channel, press the TEMP. / + button. To end the dew point display,
press the TEMP. / + button again. If you do not press any button for 30 seconds, this mode will exit and the
main unit will return to the normal mode.
Dew point (dew point temperature) is the temperature at which the air is maximally saturated with water
vapor (relative humidity reaches 100%). If the temperature drops below this point, condensation occurs.
The dew point temperature is different for different absolute humidity.
The dew point temperature is determined by the temperature & humidity data from wireless sensor.
Setting the alarm time and low outdoor temperature alert
In normal mode, press the ALARM button to display the set alarm time. Hold down the ALARM button for 2
seconds to start setting the alarm time:
1) press the TEMP. / + or BARO. / - button to set the hour,
2) press the SET / CH button to confirm and skip to minute setting, press the TEMP. / + or BARO. / - button
to set the minute,
3) press the SET / CH button to confirm and skip to next setting; press the TEMP. / + or BARO. / - button
to turn the alarm ON or OFF,
4) press the SET / CH button to confirm and skip to next setting; press the TEMP. / + or BARO. / - button
to turn the low outdoor temperature alert ON or OFF,
5) press the SET / CH button to confirm and exit setup mode.
