I use a RAPT PILL IOT device to measure my beers gravity in the fermenter. If the calibration is off, would I see a lower ABV and gravity reading?

Yes, if the calibration of your RAPT pill IOT device is off, it can cause inaccurate readings of the gravity and ABV of your beer. If the calibration is too low, you may see a lower gravity and ABV reading than the actual values, and if the calibration is too high, you may see a higher gravity and ABV reading than the actual values.

To ensure accurate readings, it’s important to calibrate your device regularly, following the manufacturer’s instructions. Additionally, you may want to compare the readings of your RAPT pill IOT device with other measurement methods, such as a hydrometer or refractometer, to confirm the accuracy of your readings.

It’s also worth noting that other factors, such as temperature, dissolved CO2, and the presence of residual sugars or other compounds in the beer, can affect the accuracy of gravity and ABV measurements. Therefore, it’s important to take multiple readings over time and to use them to track the progress of fermentation and determine when the beer is ready for packaging or further conditioning.