Last week we introduced you in more detail to the unique timers from the TechGrow brand. The Dutch manufacturer is also a leader in the field of fan speed control fans or, for example, carbon dioxide levels in the growing environment, increasing the yield and final quality of your crops. It is precisely innovative and multifunctional products of this kind that are in focus today. Relative humidity, temperature and CO2 concentration. All this, and more, can play a role in plant cultivation in a grow box or greenhouse to your advantage once and for all. There is certainly plenty to look forward to!

Enriching the growing space (for example inside a grow tent) with carbon dioxide makes it possible to increase your yields by up to a fifth. If this is new information for you, you can read a separate article on plant cultivation and carbon dioxide. It is not the only reason to generate enough CO2 where you grow your plants. And when it comes to the most advanced methods available on the market, TechGrow is making a strong statement through a varied range of exceptional products, which we will now look at more closely.

TechGrow T-1 Pro CO2 controller

Why start with anything other than the most advanced CO2 controller of its kind on the market, right? This device ensures the optimal CO2 concentration inside a grow tent or room, while also allowing convenient control and precise monitoring. Controller, regulator, monitor. In short, it is all in one, because a rich, high-quality harvest is usually the advantage of growers who have their growing spaces perfectly under control, whether it is the CO2 level or, for example, temperature or humidity. Although this professional CO2 controller offers indoor growers plenty of useful functions, which we will come to shortly, its configuration is usually a matter of a single minute! For that reason, it suits not only professionals and commercial growers, but also beginners who want to put together their first growing setup with a high level of efficiency and reliability.

Are you asking what all this smart box can do?

• It features an automatic counter for accurate and reliable dosing of carbon dioxide. It is important to mention that it allows dosing to be set so that you can easily achieve a stable CO2 level in a closed growing space during indoor plant cultivation.
• T1 Pro automatically stores a weekly log. The 7-day storage capacity allows you to track your progress during the process of indoor plant cultivation.
• It also controls delayed activation of CO2 enrichment in the grow tent or room. This function makes it a truly intelligent sensor capable of ensuring optimal plant growth even during your absence.
• An important part of this smart device’s equipment is a sensitive ppm sensor, thanks to which the T1 Pro is fully adjustable in the range from 300 ppm to 2000 ppm or from 300ppm to 10,000 ppm.
• The clear display, which updates itself every second and whose backlight switches off after 60 seconds in line with energy efficiency, allows the connected sensors to read actual as well as minimum or maximum values. In addition to the CO2 level, it also displays temperature and humidity if the temperature and humidity sensor is also connected. The sensors can be connected using a standard network cable.
• The built-in calibration function allows the CO2 sensor to be calibrated in fresh air.
• There are also LED indicators for CO2 dosing, light detection and stable climate.
• If there is a power cut, all current settings are automatically saved. Automatic fault detection also prevents complications caused by cable failure or poor connection to the sensors.
• If a light sensor is connected, the T1 Pro automatically switches between day and night mode.

We started with the best, and that is why the multifunctional T1 Pro is the basis of the complete professional set: TechGrow CO2 kit – PROFI. It is ready for immediate use thanks to the balanced combination of the following three components:

1. Control unit
2. Pressure cylinder valve
3. Combined CO2, temperature and humidity sensor

These complete sets are our TIP for today. In addition to the PROFI set (pictured), we will shortly introduce two lower variants as well, namely MEDIUM and BASIC.

TechGrow T-Micro CO2 controller

In this case, it is the smallest CO2 metre in the TechGrow range. However, the size of this digital device does not change the fact that, just like the more advanced T1 Pro it is among the most reliable devices for monitoring and regulating carbon dioxide in the growing space. That is beyond dispute. This device offers professional and hobby growers a fully flexible and scalable solution in every growing room, whether small or large. Even without your presence in the grow room, it reliably ensures that the carbon dioxide source switches on or off at the right time. What are its other advantages?

• Automatic voltage detection (110 V / 230 V), as well as cable failure or poor connection to external sensors.
• The light sensor allows automatic switching between day and night settings.
• T-Micro is a metre and controller in one, offering easy Plug & Play commissioning.
• It is adjustable from 300 to 2000 ppm.
• It measures every second.
• The LCD display shows actual values, including the set value and hysteresis. If there is a power cut, the set values are automatically restored thanks to the internal memory.
• LED indicator provides up-to-date information at all times on whether CO2 is being dosed or not.
• This control unit is also equipped with a calibration function, thanks to which the CO2 sensor can be calibrated in fresh air.

T-Micro forms the basis of the complete MEDIUM set (pictured), which you can start using immediately. Recommended!

TechGrow T-Nano CO2 controller

If you do not yet have much experience with indoor plant cultivation, the simpler CO2 controller T-Nano will probably be more than sufficient for you. It is logically the cheapest, but it still relies on top-quality workmanship, high performance and ease of use, while carrying out highly accurate measurements inside small and large grow boxes, greenhouses or other growing spaces. How does the TechGrow T-Nano controller work?

• It automatically detects voltage (110 V / 230 V). 
• You can easily set the desired carbon dioxide level in the growing space or the value and hysteresis using a pair of rotary knobs. The controller takes care of the rest for you.
• In this model too, you can rely on indicator “LEDs” that inform you whether CO2 is being dosed at the moment or not, whether the climate is stable, or whether the relay is currently switched off due to the night mode in progress.
• As with the higher variants, the T-Nano CO2 controller also allows for a power cut. In such a case, fully autonomous backup of the set value and hysteresis is activated.
• The external sensor has a light sensor that allows automatic switching between day and night mode.
• As soon as an error occurs in the connection between the controller and the external sensor, or if the cable fails, the device automatically alerts you to the error.

As you have probably already guessed, the basic set BASIC (pictured), which you can use immediately just like the higher configurations, is built on this economical variant (Eco Line) of the multifunctional controller from TechGrow in the form of the T-Nano. In short, Plug & Play!

TechGrow T-Mini Pro CO2 Controller

If you are looking for simplicity, for example because you are still gaining your first experience in the field of indoor plant cultivation, but at the same time want a compact digital controller / monitor with a clear display, then you will appreciate the smallest variant complementing the Pro range – TechGrow T-Mini. Once again, this is an “all-in-one” device. However, one single knob is enough to operate this multifunctional controller! At the same time, you can rely on a professional device representing a welcome upgrade even for the growing equipment of experienced growers. Let us state its key features:

• It is fully adjustable in the range from 300 ppm to 2000 ppm.
• It has a built-in sensor for carbon dioxide, temperature and relative humidity. The device therefore displays the exact current value as well as the minimum and maximum values of CO2, temperature and humidity on a display that refreshes every second and automatically switches off the backlight after 60 seconds to save energy.
• The integrated light sensor allows automatic switching between day and night mode.
• As with the above versions, a calibration function is also available for calibrating the CO2 sensor in fresh air or indoors.
• In the event of a power cut, you can rely on memory for the set values and hysteresis.
• There are also indicator LED diodes for CO2 dosing and stable climate.

At the beginning of this article, we introduced the TechGrow T-1 Pro CO2 controller in detail as the most advanced CO2 controller of its kind on the market. The good news for all connoisseurs and seasoned growers who value top-quality equipment for their grow room is that we also have its expanded version in stock, the TechGrow T-2 Pro CO2 controller 14A, or alternatively the TechGrow T-2 Pro CO2 controller 7A. What extra benefits does the expanded version, whether with 14 A or 7 A capacity, bring from the user’s perspective?

• The 14A version is suitable for connecting fans with a maximum airflow of up to 10,000 m3/h! The fan control has 2 setting options: automatic or manual. The 7A version has half the capacity, which means that a fan with a maximum airflow of 5,000 m3/h can be connected to it.
• Continuous measurement and regulation of CO2, temperature and relative humidity.
• At night it extracts excess CO2 from the air.
• Pulse dosing for measured addition of CO2.
• Quick menus for a practical overview of all settings.

We also recommend other top-quality controllers from TechGrow

• Fan speed controller with day and night mode: This climate control unit can distinguish between the fan speed that is desirable during the day or during the night. Unlike the products above, it no longer allows external sensors to be connected. It is therefore an advanced air handling controller without the function of measuring relative humidity, temperature or CO2 concentration inside the growing space.
• TechGrow Clima Control Basic Plus 14A is used to regulate the speed of up to 2 fans and also to regulate temperature based on data from a temperature probe.
• The speed of two fans at once and the temperature are also controlled by the handy TechGrow Clima Control ECO 15A controller, which is also exceptional for its ability to accelerate more smoothly than other controllers. The result is a more stable climate inside the grow tent or room. Your plants will therefore not be exposed to unnecessary temperature shocks.
• TechGrow also manufactures the quality Humi Heavy hygrostat for convenient control of a humidifier or dehumidifier.

You may have noticed that TechGrow products are often available in several configurations. For example, the TechGrow Clima Control Plus 14A, which allows you to regulate relative humidity in addition to temperature and speed, is available either in a cheaper version as a standalone controller, or you can pay extra for a model equipped with sensors measuring temperature and humidity.

CO2 generators

Repetition is the mother of wisdom, so it is worth emphasising how significantly achieving a stable and optimal CO2 level in the growing space helps faster growth and ripening of crops. That is why extra-powerful CO2 generators also have their irreplaceable place here. They run on natural gas and are especially perfect for greenhouses or other larger enclosed growing spaces. Because their generator works with electric ignition, the overall gas consumption is much lower than with other generators. These CO2 generators can be easily connected to a gas cylinder and are supplied with 4 burners. Through the illustrative photograph, you can get an idea of what it looks like inside them.

The complete range of the Dutch manufacturer TechGrow is simply top-class, but also very extensive. Therefore, we hope that this article has helped you to orientate yourself better in it and gain an overview of at least the most important benefits it offers users in practice. If you have any other questions, please do not hesitate to ask us at the well-known address info@higarden.eu. We are here for you and look forward to your questions!

We also recommend these products:

• TechGrow Clima ECO 5A controller (minimum and maximum speed)
• TechGrow Clima ECO 5A controller (minimum speed and temperature)
• TechGrow Clima ECO 5A controller (temperature and relative humidity)

What to read next:

• How do you choose a circulation fan?
• WHISPERBLOWER: professional fans with unrivalled efficiency
• Torus Hydro perfectpH: revolutionary pH stabiliser