Just picked up a 8 channel recorder for the system.
This saves lots of problems
What is the co2 average, and what happen if I go in the room to work
What is the water temp and times , that way you will know if everything is working
What is the room temp, are fans working, are lights working at max output, did the tank refill ,and is full.
Having grown next to narks and cops , you can not run to the grow space.
You want things to happen when noise will not be a problem, refilling tanks at 3:00 am. Venting room max to reduce total room temp. Mine is done at 3:00 to 5:30 to make max effect of cooler air.