Climate and fan controllers adjust your equipment automatically to temperature and humidity, so you don't have to keep tweaking by hand. This collection includes Cli-Mate climate, frequency, twin and multi-controllers, Inqontrol STC temperature controllers and the Twinmaster, SMSCOM SPC and twin controllers with a temperature sensor, Dutch Masters DM-1000 and DM-1500 fan controllers and the Platinum EC temperature and speed controller. Choose based on what you want to control: a fan speed controller for extraction only, or a climate controller that also switches heating, humidifiers or dehumidifiers. See fan controllers and climate controllers, and read our article on fan controllers for grow rooms.
Questions & answers about Controllers
All growing questions →- Climate What is the ideal temperature in a grow tent? About 22 to 28 °C with the lights on, and no more than about 5 °C cooler when they're off. Read the answer →
- Climate What is the ideal humidity in a grow tent at each stage? About 65 to 80% for seedlings and cuttings, 50 to 70% in growth, and 40 to 50% in flowering, a bit lower toward the end. Read the answer →
- Climate What is VPD and how do I use it in a grow tent? VPD (vapour pressure deficit) combines temperature and humidity into one number that tells you how strongly the air pulls water out of th... Read the answer →
- Climate Do I need a climate controller, or is a thermo-hygrometer enough? A thermo-hygrometer is enough to start with. A controller is worth it once you want fans, humidifier and heater to react on their own. Read the answer →
