I’m saving the measurement of 11 inches - following the manual. However, when I go back and check the measurement remains "19" and not "11".

 

 

Posture Pro’s calibration settings in an ini file that Posture Pro uses for initialization. This is a convenience file to store personal settings. It does not matter what the measurements say on the screen. Posture Pro is calibrated by the settings made to this ini file upon startup.