Smart Controller 69 Pro enables dynamic temperature, humidity, and time-based programming for precise climate management
PWM-controlled EC motor maintains quiet operation and energy efficiency even at low RPMs
Mixed flow design ensures strong airflow even in high static pressure environments
Bluetooth and WiFi connectivity allow remote monitoring, alarms, and data insights via app
Detachable motor box simplifies cleaning and maintenance
Summarized by Shop
The AC Infinity CLOUDLINE T4 is a smart 4-inch inline duct fan engineered for growers, HVAC users, and AV system builders who need quiet, precise, and fully automated ventilation control. Paired with the advanced Controller 69 Pro, this system delivers dynamic temperature and humidity programming, minimum speed settings, timers, cycles, a
Duct Size
4 inches
Airflow
205 CFM
Noise Level
28 dBA
Bearings
Dual ball bearings, rated for 67,000 hours
IP Rating
IP44
Input Voltage
100-240 V AC
Consumption
28 W
Power Connector
US plug, NEMA 5-15 Type B
Summarized by Shop
5.0
2 ratings
5
4
3
2
1
Makes controlling the environment easier
D
Dave · January 21, 2026
The T4 inline fan works perfect. Once set up with the 69 Pro controller using temp/humidity settings it’s a nearly forget about it operation. I have two kinds of pot trays. Thin clear plastic and the heavy duty black ones from Happy Hydro. Clearly the ones from HH will out last the others 10x. As for the cloth pots, I’ll never use plastic pots again.
Thanks HH, David