Techgrow TechGrow T-2 Pro Co2 controller 4.5A (excluding S-4 sensor)

Article number: EGS-2953
Availability: In stock (2)
Delivery time: 3-4 days

T-2 Pro CO 2 Controller

The T-2 Pro CO 2 Controller is the expanded version of the T-1 Pro CO 2 Controller, and has an integrated climate controller as an additional tool. It can therefore control both the CO 2 content and the temperature and humidity in your room. This unique combination allows you to dose CO 2 during the day and allow your fan to extract excess CO 2 and moisture produced by your plants during the night. In addition, the TechGrow T-2 Pro CO 2 Controller keeps the temperature in your room up to date.

The measurement range of this CO 2 controller ranges from 300 to 2000 ppm or from 300 to 10000 ppm, selectable by the user. The connected sensor provides automatic switching between day and night mode.

The T-2 Pro CO 2 Controller is fully equipped with, among other things, a built-in dosing retarder, timer, dosing counter and a memory to indicate the minimum and maximum CO 2 value in a room. In addition, this CO 2 controller has a unique calibration function for a perfect adjustment of your fan. Due to the special hardware and software, the fan control functions continuously and silently.


The T-2 Pro CO 2 Controller is housed in a robust, splash-proof housing and is easy to operate with 1 push and turn button. You can read the information comfortably from the bright and large LCD display.



The T-2 Pro CO 2 Controller is supplied without sensor.

Recommended sensor: S-4 sensor / 0-2000 ppm.


Versions / versions: 4.5A-14A



  • Measures and regulates CO2, temperature and humidity simultaneously, during the day and at night.
  • Also extracts the excess CO2 during the night.
  • Shows the minimum / maximum values of connected sensor in the display.
  • Adjustable from 300 to 2,000 ppm or from 300 to 10,000 ppm.
  • Adjustable dosing retarder and timer.
  • Automatic CO2 dosing counter.
  • Dose log (dose log) of the dose counter for the past 7 days and display of the total (cumulative) dose time.
  • Pulse dosing for the dosed addition of CO2.
  • Built-in calibration function for CO2 and temperature.
  • The display is refreshed every second.
  • Indication LEDs switch on with CO2 dosing, light detection and stable climate.
  • All set, hysteresis and alarm values of the sensor can be set separately.
  • Quick menus for a smooth overview of all settings.
  • Suitable for connecting fans up to 5,000 m3 / hour (7 A) and up to 10,000 m3 / hour (14 A).
  • The fan control has 2 setting options: automatic or manual.
  • Fan and CO2 relays are fused separately.
  • Memory for power outages for all settings.
  • The controller automatically switches between day and night mode through the light sensor.
  • Connection of the sensor with standard network cable (UTP).
  • Various sensors are available separately (0-2,000 ppm / 0-10,000 ppm).
  • Possibility to connect the TechGrow Datalogger (DL-1).

Technical specifications

  • Power supply: 100 to 240 V
  • Recording: 3 W (with sensor, without CO2 source)
  • Maximum fan capacity: 7 A / 1700 W (up to 5,000 m3 / hour) or 14 A / 3400 W (up to 10,000 m3 / hour)
  • Maximum capacity CO2 source: 6 A
  • Maximum total capacity: 16 A
  • Setting range CO2 set: 300 to 2,000 ppm (with 2,000 sensor) / 300 to 10,000 ppm (with 10,000 sensor)
  • Setting range CO2 +/-: 20 to 200 ppm (advice 50 ppm hysteresis)
  • Measurement time: 1 measurement per second
  • Setting range RH set: 11% - 100% relative humidity
  • Setting range RH: +/- 1% - 30% relative humidity
  • Setting range TMP set: 15.0 - 35.0 ° C
  • Setting range TMP: +/- 1.0 - 5.0 ° C
  • Measurement time: 1 measurement per second
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