If u wanna keep vpd in order these make life simple!
View attachment 1417960
Humidity controller has humidifier on low side and exhaust on high side! Temp controller has a lil oil heater on low side and intake on high side! Helps keep it at constant level except when intake fan comes on humidity will drop just til it cycles off and then humidifier puts it right back where should be!
*edit* Not sure why numbers disappear off the inkbird when taking photos of it!