You can build your own IoT Pool Monitor using Adafruit IO and WipperSnapper.
This can help you keep track of water temperatures by logging and plotting data to a dashboard!
All of the electronics are housed in a clear sealed enclosure that is also water resistant.
This project is powered by the Feather ESP32-S2 running WipperSnapper, Adafruit’s no-code solution to IoT Projects.
Just stick the DS18B20 wire in the pool to monitor how warm it is and log that data in a custom dashboard.
With WipperSnapper you can create a beautiful dashboard with gauges and charts so you can visually monitor the warmth of your pool!