You don’t want constant air exchange in your tent. That’s a weed myth. You just want frequent air exchange. The AC Infinity T series controllers help you manage that and dial in VPD…sorta.
You can use the controller to monitor high and low temps and high and low humidity simultaneously, all of which will run the fan at the speed you set at the original menu page of “On.”
You can also set alarms on the controller for all of those things as well, or turn the alarms off. When alarm conditions are met, the controller chirps at you a little bit (not very loudly) and the fan spins up to 10 and stays there until the alarm conditions are no longer met.
So, here’s my usage as an example with the T6. I run LED which require higher canopy temps. I put the sensor about 6" below the tallest colas right in the middle of the tent, not close to any plant material, hanging free in the air. That gets a good reading.
I have the fan speed set to 3 and my settings are as follows:
High temp monitor: 85F
Low temp monitor: OFF
High humidity monitor: 60%
Low humidity monitor: OFF
High temp alarm: 90F
Low temp alarm: OFF
High humidity alarm: 70%
Low humidity alarm: OFF
So this means that anytime the temp gets to 85F or the humidity gets to 60%, the fan comes on at speed 3 until the temp/humidity lowers by 2 points, then it goes off. If my temps get to 90F or my humidity gets to 70%, the fan bumps up from speed 3 to speed 10 until it gets back below the alarm setpoint. I don’t have to worry about low humidity.
This is pretty useful for maintaining optimal conditions during the daylight cycle. Unfortunately, the system really needs another page and sensor for nighttime settings so you can set lower humidity or higher temps at night to combat PM.
Hope that helps answer your questions. It’s a really nice set of features for that price of fan.