An automatic device for regulating temperature (10)

I believe the answer is:

thermostat

(Other definitions for thermostat that I've seen before include "Temperature regulator" , "Heating device" , "Temperature controller" , "Form of control" .)

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.