There is a special version of this product with WLAN connection and Shelly compatibility. There is now also a brightness sensor.
Maybe I just need to weld/vacuum the external temperature sensor in with a weight and place it in the skimmer screen.

According to our information, the product does not support a special pool sensor for measuring the water temperature. The weather station is equipped with a temperature/humidity/wind sensor and a precipitation sensor. Additional sensors are not provided.