User manual

3. In this example, the location entered into the display is as follows:

Latitude = 33.30 North

Longitude = 111.96 West

after rounding to two significant digits.

Record your longitude and latitude here for future reference:

Longitude:

Latitude:

Figure 25

6.3.12 Barometer Display

x 11

Press to change the barometer display between REL (relative pressure) and ABS (absolute

pressure).

Note: The weather station console displays two different pressures: absolute (measured) and

relative (corrected to sea-level).

To compare pressure conditions from one location to another, meteorologists correct pressure to

sea-level conditions. Because the air pressure decreases as you rise in altitude, the sea-level corrected

pressure (the pressure your location would be at if located at sea-level) is generally higher than your

measured pressure.

Thus, your absolute pressure may read 28.62 inHg (969 mb) at an altitude of 1000 feet (305 m), but

the relative pressure is 30.00 inHg (1016 mb).