humidistat
/hjuːˈmɪdɪstæt/
noun
- A device that measures and controls the humidity level in the air, similar to a thermostat for temperature.
- You can set the humidistat to keep the humidity between 40 and 50 percent.
- The humidistat automatically turns the humidifier on when the air gets too dry.
- A humidistat is often built into modern HVAC systems to maintain comfort.
Synonyms