The measurement pole height can be modified in the Target Height field in the upper right corner of the acquisition page, or in the Acquisition Information box after the acquisition point. The differences between pole height (P), slant height (S), and vertical height (V) are as follows:

Pole height (P) is the height of the measurement pole, which can be read directly on the measurement pole.

Vertical height (V) is the vertical height from the instrument’s height point (usually the instrument’s bottom; older instruments like the V30 and V60 measure to the instrument’s body markings) to the ground.

Slant height (S) is the height from the ground point to the outside of the height gauge, typically used when the instrument is mounted on a tripod.