To reset Min / Max, press the Up Button while on the main pressure screen.
Min / Max will always be reset once the FieldLab Pressure is powered down.
When certain Test Modes are activated, FieldLab Pressure displays a running tally of the highest and lowest pressures that the gauge has detected until powered off. You can view it on the main pressure screen beside the rows titled Max and Min.
Min / Max will always be reset once the FieldLab Pressure is powered down.