Answer: regulators

AnswerCrossword Clue
REGULATORSThermostats, e.g.
regulatorsREGULATOR, one who regulates
regulatorsA device for controlling the rate of working of machinery or for controlling fluid flow, in particular a handle controlling the supply of steam to the cylinders of a steam engine
regulatorsA person or body that supervises a particular industry or business activity
regulatorsA person or thing that regulates something, in particular
regulatorsA device for adjusting the balance of a clock or watch in order to regulate its speed