How to treat Casio's barograph?

1, the horizontal axis represents time, one point represents two hours, and the rightmost point represents the latest measurement result.

2. The vertical axis represents the air pressure, each point represents the relative difference between its measured value and that of the previous point, and one point represents 1 hectopascal.

3. generally look at the barograph. An increase in air pressure means that the weather is getting better, and a decrease in air pressure means that the weather is getting worse. 4. The height surveyor converted according to the air pressure, and the height suddenly became lower, indicating that the air pressure increased, which is a sign that the weather is getting better. In the height measurement mode, you can ADJUST it by pressing and holding Adjust, but there is no sign of accurate height.