River Erlaf water temperature in Wieselburg / Austria. Sensor is a DS18B20, and a LSN50-V1 transmits the data via LoRa to a near thethings.network gateway every 15 minutes.
3 Deep Water Probes with 5 Minute Logging
Temperatures echoed via NodeRed
Channel for monitoring my planted nano tank using the ESP8266
Channel for monitoring my Neocaridina shrimp tank using the ESP8266
Water Temperature Buoy - located near Gig Harbor, Washington, Temperature sensor is located 18 inches below water surface. Temp Sensor max error: 0.5 Deg F. The buoy is beached during Minus Tides
Aquarium monitoring using ESP32, temperature sensor DS18B20 and pH sensor SEN0161
Some info about the Isar river in Munich like water level, water flow and water temperature, taken from http://hnd.bayern.de and updated quarter-hourly
Fpachecoibz ISI Test swimming pool
South Shore in 4 feet of water. Air temp at end of dock. 18B20 sensor on an ESP-01 processor.