I have been using Titan Kronus 3 and the shit sucks. I like that it has a timed CO2 delay before activating exhaust. But it doesn't activate exhaust at night. I have to go to my grow room and switch the exhaust cord from 'Exhaust' to the 'Night Only' plug. They designed this thing to require two exhaust systems, 1 for day and 1 for night! wtf? Anyway, I need a master controller that doesn't suck quite so much. Suggestions would be greatly appreciated.