Settings
Setting actual pressure value and unit
Figure 1. Environment menu
For achieving the most accurate measurements in high altitudes where the barometric pressure is clearly lower than in
the sea level, the actual atmospheric pressure value should be set to GM70. The acceptable pressure range is 700 …
1300 hPa. Pressure is given in the units of hPa or bar.
To configure the pressure value:
1. Open the menu by pressing Open.
2. Select Environment and press .
3. Select pressure value, press Unit and then press Set.
4. Set the pressure value with the arrow keys and press OK to save the value.
5. To change the unit, press Unit. The default unit is hPa.
6. To return to the basic display, press Exit.
Setting actual temperature value and unit
For achieving the most accurate measurements, the actual temperature value should be set to GM70. The acceptable
temperature range is -20 ... +60 ºC (-4 ... +140 ºF).
1. Open the menu by pressing Open.
2. Select Environment and press .
3. Select temperature value and press Set.
4. Set the temperature value with the arrow keys and press OK to save the value.
5. To change the unit, press Unit. The default unit is ºC.
6. To return to the basic display, press Exit.
If you are using HMP75 or some other humidity probe, the temperature information can be linked to
compensate the CO
2
reading of GM70. For more information on simultaneous measurements, see
Measuring multiple parameters simultaneously.
Display settings
Figure 1. Display setting menus
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