Choosing Write Settings to Sensor causes the current calibration to be written on the sensor's own memory instead of within Logger Lite. You should only perform this action if you are absolutely sure that your current calibration needs to be available to all users of the sensor.
You can store multiple calibrations or replace existing calibrations on your sensor's chip. You are limited to three separate settings on a single sensor. You cannot overwrite Page 0, the sensor's factory settings.
Because you can store multiple calibrations settings onto your sensor's memory, you can also choose which of those settings acts as the default. Select the calibration from the Default Page pop-up.
If you want to restore the sensor to its factory settings, select Page 0.