Grow Tent

6 Best Environmental Controllers for 2026

Best Grow Room Controllers

A grow room controller is a device or system that allows you to monitor and control various environmental factors within a grow room. This involves temperature, humidity, lighting, and airflow. It automates the growing process, reducing the need for manual adjustments and minimizing human error. 

Here is what you can do with a grow room controller:

  • Environmental Monitoring: Grow room controller sensors track temperature, humidity, light intensity, CO₂ levels, and soil conditions.
  • Automation: Grow room controllers can automatically adjust lights, fans, humidifiers, dehumidifiers, and other equipment based on sensor data.
  • Remote Control: Many grow room controllers can connect to mobile apps, which allows you to monitor and adjust settings from anywhere.
  • Customizable Settings: Users can set specific parameters and schedules for different growth stages, such as seedling, vegetative, and flowering.

In the following parts, we’ll introduce the 6 best multi-functional grow room controllers worth trying for 2026. Before making a purchase, check the grow room controllers review and find out how they can promote plant growth.

Spider Farmer GGS Controller

The Spider Farmer GGS Controller is an advanced automation system designed for indoor cultivation. With a smart app, you can remotely manage and automatically control the environmental conditions within a grow room or tent. It’s a good starting point for most growers, as it offers basic control over lights, fans, and temperature and humidity sensors. Here are the key features and highlights of the Spider Farmer GGS Controller.

Grow Tent Controller - Spider Farmer GGS Controller

Grow Tent Controller - Spider Farmer GGS Controller

Highlights

  • The GGS Controller is compatible with Spider Farmer’s G Series, SE Series, and SF Series LED grow lights (excluding SF1000D, SF300, and SF600).
  • It also integrates with other devices like dehumidifiers, humidifiers, heaters, and other equiptment through smart power strips.
  • It can manage grow light intensity, simulate sunrise and sunset effects, and control fan speeds to maintain optimal conditions.
  • You can control and monitor your grow room via the Spider Farmer app, which supports both Bluetooth and Wi-Fi connection.
  • The app allows for remote adjustments, scheduling, and historical data tracking.

Limitations

  • Although the Spider Farmer GGS Controller can control some third-party equipment, it has some limitations and requirements. For example, the third-party devices should have RJ12 ports.
  • The GGS Controller is not compatible with Spider Farmer’s SF1000D, SF300, and SF600 models. Growers who own these specific models will need to consider alternative controllers.

Mars Hydro iControl Intelligent System

The Mars Hydro iControl Intelligent System is another comprehensive grow room controller. It’s designed to provide advanced environmental control and automation for indoor growers. It includes the iControl smart grow room controller, the iHub Pro 10-Outlet smart grow power strip, and optional expansion kits and sensors for PPFD, CO₂, and soil monitoring.

Grow Tent Controller - Mars Hydro iControl Intelligent System

Grow Tent Controller - Mars Hydro iControl Intelligent System

Highlights

  • You can monitor and automatically adjust temperature, humidity, and VPD (Vapor Pressure Deficit) in real time throughout the entire plant growth stages.
  • You can customize light and climate settings for different plant growth stages, such as seedling, vegetative, and flowering, and set the system to automatically switch phases based on a preset timeline.
  • The system supports additional sensors for PPFD (light intensity), soil moisture, nutrient levels, and CO₂.
  • The MarsPro App allows for remote monitoring, detailed data logging, and instant alerts for issues such as disconnected devices or extreme conditions.
  • The iHub Pro and iHub-4AC power strips offer multiple outlets with various automation modes, which enable you to manage multiple devices like fans, humidifiers, and dehumidifiers.

Limitations

  • The iControl controller is not compatible with previous Mars Hydro models, such as the Controller43 or older iHub-4ac power strips.
  • The iControl controller and iHub Pro can only manage one grow environment at a time.

AC Infinity Smart UIS Controllers

The AC Infinity Smart UIS Controllers come in different models. For example, the Controller 69 Pro can manage up to 4 devices, while the Controller 69 Pro+ can handle up to 8 devices. Equipped with smart controls, they can support a wide range of devices from grow lights to fans, and optimize the growing environment.

Grow Tent Controller - AC Infinity Smart UIS Controllers

Grow Tent Controller - AC Infinity Smart UIS Controllers

Highlights

  • With the AC Infinity grow room controller, you can control temperature, humidity, and other environmental factors. The number of the controlled devices is up to 8, which include fans, lights, and other grow room equipment.
  • You can manage your grow room remotely via the AC Infinity app, which offers real-time data, climate charts, and alarms.
  • The controllers come with multiple ports and can be expanded using UIS adapters and splitter dongles.
  • The controllers log historical data, providing you with detailed insights into their grow room conditions over time.

Limitations

  • The controllers are primarily designed for AC Infinity devices with UIS connectors. Although they can integrate with some third-party devices, non-AC Infinity equipment may not receive full smart control.
  • Some users have reported occasional firmware and app update issues, which can disrupt the monitoring and control of the grow room environment.

Vivosun GrowHub Series Controllers

The Vivosun GrowHub Series Controllers include series like the GrowHub E42A controller and the GrowHub A22 controller, and additional expansion options like the GrowHub E25 and GrowHub A10. These controllers can assist in monitoring and adjusting the lighting, temperature, humidity, and VPD levels inside the grow tent. These controllers also integrate with the Vivosun app, which allows for remote control, custom growing recipes, and advanced settings such as timers, cycles, and temperature/humidity triggers.

Grow Tent Controller - Vivosun GrowHub Series Controllers

Grow Tent Controller - Vivosun GrowHub Series Controllers

Highlights

  • Control most grow room equipment, including LED lights, inline duct fans, and air circulation devices.
  • Equipped with temperature and humidity sensors, these controllers continuously monitor and adjust lighting, temperature, humidity, and VPD levels inside the grow room or tent.
  • With customizable settings, you can create your own grow schedules and adjust parameters according to your preferences.
  • By connecting to the Vivosun app, you can remotely monitor and control the grow room environment anywhere.

Limitations

  • The GrowHub sensors only track temperature and humidity, lacking the ability to measure CO₂ concentration, soil moisture, or nutrient levels.
  • The GrowHub Controller requires a 2.4GHz Wi-Fi network for pairing with the Vivosun app, which may not be available in all environments.
  • Some users have reported unreliable Wi-Fi connections, which can disrupt remote monitoring and control.

TrolMaster Tent-X Grow Tent System

The main controller - the Tent-X (TCS-1)v- comes with a 3-in-1 temperature, humidity, and light sensor (MBS-TH), and supports additional sensors for CO₂ (MBS-S8), full-spectrum quantum (MBS-PAR), soil moisture (WCS-1/2), and more. It allows you to monitor and control various aspects of the grow environment, including temperature, humidity, ventilation, lighting, and CO₂ levels. Besides, it allows you to manage irrigation schedules.

Grow Tent Controller - TrolMaster Tent-X Grow Tent System

Grow Tent Controller - TrolMaster Tent-X Grow Tent System

Highlights

  • The Tent-X system includes a main controller (TCS-1) with a 3-in-1 temperature, humidity, and light sensor (MBS-TH).
  • The system is modular and fully customizable. It supports up to 4 DS-type plug-in control models for additional devices.
  • Additional sensors for CO₂ (MBS-S8), full-spectrum quantum (MBS-PAR), soil moisture (WCS-1/2), and water detection (WD-1) can be connected to further monitor.
  • The TrolMaster app allows for remote control and monitoring of the grow tent's conditions from anywhere.
  • The Tent-X system logs historical data, enabling you to track changes over time and make informed decisions.

Limitations

  • The system is more complex than entry-level controllers.  It's more complicated to set it up.
  • The Tent-X system is more expensive compared to other grow room controllers.
  • While the system can integrate with third-party devices via expansion modules, the setup is more complicated compared to plug-and-play systems like Spider Farmer and Mars Hydro.

Inkbird IBS-TH2 Wi-Fi Temp & Humidity Controller

The Inkbird IBS-TH2 controller mainly works on monitoring and adjusting temperature and humidity. With a mobile app, you can monitor and adjust these parameters in real time. Besides, it also allows you to accuratly calibrate for both temperature and humidity sensors. This ensures that the readings are precise and reliable.

Grow Tent Controller - Inkbird IBS-TH2 Wi-Fi Temp & Humidity Controller

Grow Tent Controller - Inkbird IBS-TH2 Wi-Fi Temp & Humidity Controller

Highlights

  • The controller comes with dual 10A outlets that can be used to control heating or dehumidifying devices. This enables growers to automate the process of maintaining optimal temperature and humidity levels.
  • You can set specific temperature and humidity targets, and the controller will automatically adjust connected devices to maintain these levels.
  • The controller allows you to set different sampling intervals (10s, 30s, 1min, 2min, 5min, 10min, 30min) based on your needs.
  • The IBS-TH2 connects via Wi-Fi, allowing users to monitor and adjust settings remotely through a mobile app.

Limitations

  • The IBS-TH2 has a relatively short battery life, as some users have reported that the batteries drain quickly.
  • The device can store up to 30,000 data points. This storage capacity may be insufficient for long-term monitoring.
  • The IBS-TH2 is rated IPX4, which means it is water-resistant to splashing water but not meant to be submerged.

Conclusion

In conclusion, it’s necessary to select a proper environmental controller for your grow room or grow tent. These grow tent controller provide comprehensive control over temperature, humidity, lighting, and other key environmental factors. By reviewing the features and advantages of each grow room controller, you’ll find the most ideal choice for your needs.

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About Amy

Amy‘s been writing SEO articles for over 4 years. Before turning her focus to indoor gardening, she served in the IT industry, writing a lot to help users overcome tech issues. As a professional SEO writer, Amy's developed a keen eye for crafting informative content that drives traffic and boosts search engine rankings for her clients.

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