Rhode89answered grow question 4 years ago I use inkbird controllers for both humidity and temperature. they are currently £63.99 on amazon and automates the temp/humidity environment perfectly for me in a 1.2 x 1.2 x 2m black orchid tent. I am on my 1st grow and weeks in and have had no issues with these controllers. Fans/heater/humidifier's and de-humidifiers all run through the controllers so save a huge amount of messing around and helps in this summer heat for sure! just paste (Inkbird ITC-308 Digital Temperature Controller Heating and Cooling with IHC-200 Humidity Controller Humidifier and Dehumidifier) into amazon for both if needed :) good luck and hope we all have successful and happy grows!