A humidistat measures the humidity levels in your grow room and automates humidity control. When the humidity gets too high, the humidistat kicks off the dehumidifier. When the humidity gets too low the humidistat kicks off the humidifier.

Learn all about humidity and your grow room:

More climate related terms:

Climate | Air circulation | Airtight | Charcoal filter | Extractor | Fancontroller | Fans | Hygrometer | Humidifier | Dehumidifier | Heating

World Icon

500 Helpful Articles

200 detailed grow guides

Group Icon

35,000+ Daily Visitors

500,000+ Grow Bible readers

Plant Icon

100 Hand-Picked Strains

8,000+ connected businesses