Step 8: Air Pressure History
The Air Pressure History shows the progress of the air pressure over a 24-72 hour period, in a 7-bar graph. The bar to the far right is the current reading, while the remaining bars show the progression of the air pressure with regard to the current air pressure.
Press the Air Pressure History bars (see graphic) to toggle between the 24 hour reading and the 72 hour reading.
Continue with Step 9: Stored Values