The first working test version of the real-time connection for a sensor with in situ application is in progress. This sensor runs sanitized wiring through the air lock which then goes through a waterproof housing into the liquid.
The sensor is connected over wifi which then transmits updates over an IoT backbone. Currently, it is logging temperature changes into a Google Spreadsheet.
The graph shows an example log from 26 hours. Not that the temperature fluctuated within a 2 degree Celsius range over this period.
Next steps include adding additional ambient temperature sensors and also to develop the in situ hydrometer sensor.