
AC Infinity Controller 69 Pro Smart VPD Controller
This is a four-port smart controller for AC Infinity's UIS platform, which links its EC inline fans, clip fans and LED grow lights. Each port runs its own program, or ports can share one. An exhaust fan, a circulation fan, a humidifier and a light can each follow different rules. A 12 ft probe with a thermal-alloy head reads temperature, humidity and VPD and feeds every program. In Auto mode a port scales speed or brightness between a minimum and maximum level as readings cross the triggers you set. VPD mode does the same off vapor pressure deficit, which tracks plant transpiration more closely than humidity alone. Cycle, Schedule and Timer modes cover lights, recirculation fans and anything else that runs on the clock. Transitions ramp levels gradually instead of jumping straight from low to high. The controller body measures 3.66 x 3.11 x 0.98 in, with a 3.5 x 1.4 in backlit display in Fahrenheit or Celsius. It draws about 1 W and takes its 12V power from the connected UIS device, so it needs no wall adapter. Programmable temperatures run from 32 to 140°F. It drives UIS devices only, so other brands' lights need a UIS lighting adapter. AC Infinity covers it with a two-year warranty.
Setting Up a Grow Room Controller for Fans and Lights
Hang the probe at canopy height in the middle of the tent, out of direct light and away from the fan's air stream. Mount the controller outside the tent on its wall bracket, or stand it on the built-in kickstand by the door. Plug the exhaust fan into the first port and give it temperature and humidity triggers, so it ramps up as the lights heat the room. A circulation fan on a second port can hold a steady level all day. A light on a third port can follow a schedule with gradual sunrise and sunset transitions. Raise the exhaust minimum so the tent keeps negative pressure through lights-off. For VPD targets, growers usually run lower values in early veg and higher values in late flower, then let the controller hold the band. The app connects over 2.4 GHz WiFi for remote access, with Bluetooth for setup at close range. It keeps historical charts, sends alarms and notifications, and exports the log as a CSV file. That record makes it easy to spot a fan that can't keep up on hot afternoons. Lock or hide the display once settings are dialed in, so nobody nudges a program by accident. Keep the probe head clean, since dust and spray residue skew humidity readings over time.
Key Features
- Four Independent Ports: Each UIS fan or light runs its own program or shares one.
- Temp, Humidity and VPD Probe: A 12 ft sensor with a thermal-alloy head feeds every program.
- Five Program Modes: Auto, VPD, Cycle, Schedule and Timer, with minimum and maximum levels.
- WiFi and Bluetooth App: Remote control, historical charts, alarms and CSV data export.
- Powered by the Device: Draws 12V from the connected UIS device, with no wall adapter.
- Lock and Hide Display: Keeps finished settings from being changed by accident.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | AC Infinity |
| Model | CTR69P |
| UPC | 819137023659 |
| Ports | 4 UIS |
| Sensor | 12 ft (144 in) temperature, humidity and VPD probe |
| Modes | Auto, VPD, Cycle, Schedule, Timer |
| Programmable temperature | 32 to 140°F |
| Operating voltage | 9 to 18V |
| Power | 1 W |
| Current | 0.1 A |
| Power supply | 12V from the connected device |
| Operating humidity | 35 to 85% RH |
| Connectivity | 2.4 GHz WiFi, Bluetooth |
| Dimensions | 3.66 x 3.11 x 0.98 in |
| Display | 3.5 x 1.4 in, backlit |
| Included | Controller, 12 ft sensor probe, wall-mounting hardware |
| Warranty | 2 years |