Look for the thread with Raspberry Pi in it. This is a small processor the some folks are using for temperature monitoring. They are able to connect it to another board that will serve up the temperatures.
Besides that though, where was the temperature probe? What was the set point? Were you using a PID? Does it have an alarm feature?
Have you considered using a flow meter like this https://www.adafruit.com/blog/2012/0...-npt-threaded/
. They cost $10.
Just a few thoughts to help you along. Good luck.