So far, monitor provided sensor data download some latest data which are only 200 - 1200 latest sent.
Inside the monitor, exceeded updated data are archived as .zip file.
For now, also archived .zip file can be downloaded.
For the present, due to the room of strage, monitor doesn't delete these older data spontaneously without your explicit order of delete with tapping the DELETE BUTTON. But I'm really appreciate your cooperation to delete unnesessary data (especially after downloaded), Thank you!