Hubitat with Homemade Temperature, Humidity, Pressure and Light sensor

[iharyadi]

@mjruotolo, yes... the modules can be fitted with external temperature probe. There is a couple option to go with this. One of them is using Arduino like below.

Best solution for monitoring aquarium water temperature

If you want do a bit of DIY, there is plenty of solution. One solution is using DS18D20. There should be waterproof version. You would need an Arduino to read the sensor. You can take the route of Hubduino to get the data to Hubitat. I personally make my Environment Sensor that is expandable. Coincident over the weekend, I build one probe using an ST32 Arduino. I am testing how long cable can I use. I tested 15 feet cable without issue. I am planning to see if I can get all the way…

Another way is using the analog input of this sensor with K-type thermocouple module like below.

Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout

I helped a couple members here who happen to measure lake temperature. I think the ds18b20 is more agile since it can be wired with a long wire. When you narrow down your choice, I can help you with it.