However, for the following years, it's recommended to calibrate the probe at the beginning of each pool season. Depending on your pool's environment and conditions, additional calibrations may also be necessary throughout the season.

If you have any concerns about the probe's calibration, you can easily check it via the Blueriiot app:

1. Place the probe in a pH4 solution.
2. Take a measurement using Bluetooth.
3. If the pH value differs by more than 0.1, please follow the in-app calibration procedure.

For detailed guidance on how to properly calibrate your probe, you can watch the step-by-step tutorial: