A greenhouse environmental controller is essential for maintaining optimal growing conditions by regulating temperature, humidity, and ventilation. The Inkbird WiFi ITC-308 stands out as the best overall due to its reliable performance and user-friendly WiFi connectivity. For those seeking smart integration, the VIVOSUN GrowHub Outlet Controller A22 offers extensive app control, while the Inkbird ITC-608T excels with dual-stage capabilities for complex setups. Buyers often face tradeoffs between affordability, ease of use, and feature complexity. Continue reading for a detailed breakdown of the best options for your greenhouse needs.
Get garden gear delivered free — and shop member deals
- Fast, free delivery on millions of items
- Access to Prime Big Deal Days deals on October 6–7
- Prime Video, Amazon Music and more included
Complete the kit
Key Takeaways
- WiFi connectivity is a common feature among top controllers, enabling remote management and alerts.
- Dual-stage controllers like the Inkbird ITC-608T are better suited for complex environments requiring multiple sensors.
- Smart app integration adds convenience but can increase initial cost and setup complexity.
- Build quality and compatibility with existing equipment influence long-term reliability more than basic features.
- The best controllers balance ease of use with advanced features, depending on the grower’s experience level.
| Inkbird WiFi ITC-308 Digital Temperature Controller Thermostat |  | Best Overall for Remote Monitoring and Versatile Control | Connectivity: WiFi 2.4 GHz | App Compatibility: iOS and Android | Relay Outputs: Dual | VIEW ON AMAZON | See Our Full Breakdown |
| VIVOSUN GrowHub Outlet Controller A22 with Temperature and Humidity Sensor Probe, WiFi Smart Plug, Thermostat, 15A 1800W |  | Best for Automated Grow Environments with Humidity Control | Power: 15A 1800W | Sensor: Temperature and Humidity Sensor Probe | Connectivity: WiFi | VIEW ON AMAZON | See Our Full Breakdown |
| Inkbird ITC-308 Digital Temperature Controller Thermostat |  | Best for Versatile Heating and Cooling in Small-Scale Applications | Controller Type: Push Button | Display Type: LCD | Temperature Control Type: Heating and Cooling | VIEW ON AMAZON | See Our Full Breakdown |
| VIVOSUN E42A+ GrowHub Environmental Controller for Grow, Smart App Control |  | Best for Advanced Indoor Grow Automation with Custom Programming | Brand: VIVOSUN | Model: GH-E42A | Unit Count: 1 | VIEW ON AMAZON | See Our Full Breakdown |
| EVC-1 Environmental Controller |  | Best Budget-Friendly Multi-Parameter Environmental Control | Functions: Temperature, Humidity, CO2 | Ease of Use: Simple | Reliability: Reliable | VIEW ON AMAZON | See Our Full Breakdown |
| Inkbird Digital Wi-Fi Humidity Controller IHC-200 Dual Outlet Pre-Wired Humidistat for Mushroom Growing, Curing Meat, Reptile, Greenhouse, Support Humidifier Dehumidifier Fan for iOS & Android |  | Best for Remote Humidity Management | Connectivity: Wi-Fi 2.4GHz | Relay Output: Dual | Voltage: 100-230Vac 50/60Hz | VIEW ON AMAZON | See Our Full Breakdown |
| TURBRO Smart Temperature Controller Heating Cooling, WiFi-Enabled Thermostat with Timer and Temperature Monitoring |  | Best for Precise Temperature Control | Temperature Range: 14-212°F | Input Voltage: AC 100-240V, 50/60Hz | Max Output: 15A, up to 1800W at 120V or 3000W at 240V | VIEW ON AMAZON | See Our Full Breakdown |
| Inkbird Temperature and Humidity Controller ITC-608T, Pre-Wired Dual Stage Thermostat, 120VAC, 15A, 1800W, ETL Listed |  | Best for Combined Temperature and Humidity Control | Max Load: 120V 15A 1800W | Temperature Range: -40°F to 212°F | Humidity Range: 5% to 99% RH | VIEW ON AMAZON | See Our Full Breakdown |
| greenhouse environmental controller | Connectivity |
|---|---|
| Inkbird WiFi ITC-308 Digital T | WiFi 2.4 GHz |
| VIVOSUN GrowHub Outlet Control | WiFi |
| Inkbird ITC-308 Digital Temper | — |
| VIVOSUN E42A+ GrowHub Environm | — |
| EVC-1 Environmental Controller | — |
| Inkbird Digital Wi-Fi Humidity | Wi-Fi 2.4GHz |
| TURBRO Smart Temperature Contr | WiFi 2.4GHz |
| Inkbird Temperature and Humidi | — |
More Details on Our Top Picks
Inkbird WiFi ITC-308 Digital Temperature Controller Thermostat
The Inkbird ITC-308 WiFi stands out as the best overall choice for greenhouse owners seeking remote access and straightforward setup. Its WiFi connectivity supports remote control via iOS and Android devices, making it ideal for those who prefer managing conditions without being physically present. Compared with the VIVOSUN GrowHub A22, this model offers simpler temperature control focused solely on heating and cooling, but it lacks humidity monitoring. The dual relay outputs allow for versatile applications, yet it is limited to 110 V power, which could be restrictive for larger setups. Its plug-and-play design simplifies installation, but the reliance on WiFi means connectivity issues could hinder operation. Overall, this controller suits growers wanting reliable, remote temperature regulation with minimal fuss.
Pros:- Remote control via smartphone app for convenience
- Dual relay outputs for controlling both heating and cooling devices
- Simple plug-and-play setup
Cons:- Limited to 110 V power supply, restricting its use in higher voltage systems
- Requires WiFi connection, so internet disruptions can affect operation
Best for: Homemade greenhouse growers or hobbyists who need easy remote temperature control within a 110 V setup.
Not ideal for: Large commercial greenhouses or those requiring integrated humidity management, since this controller doesn’t handle humidity or high-power loads.
- Connectivity:WiFi 2.4 GHz
- App Compatibility:iOS and Android
- Relay Outputs:Dual
- Maximum Output Load:1100 W (110 V)
- Temperature Units:Celsius or Fahrenheit
- Alarm:High and Low-Temperature Alarm
Our verdict“This controller is perfect for users seeking reliable, remote temperature management in small to medium greenhouses with standard voltage supplies.”
VIVOSUN GrowHub Outlet Controller A22 with Temperature and Humidity Sensor Probe, WiFi Smart Plug, Thermostat, 15A 1800W
The VIVOSUN GrowHub A22 makes sense for growers who prioritize both temperature and humidity regulation, offering an integrated sensor probe and automation scheduling. Its WiFi connectivity and real-time alerts help maintain optimal conditions for plant health, especially when compared to the simpler Inkbird ITC-308, which lacks humidity monitoring. While it provides remote control via the Vivosun app and supports multiple devices, its functionality is limited to devices with basic switches, and it requires a stable WiFi connection. The inclusion of USB ports and multiple outlets enhances its utility, but its setup might challenge those less familiar with smart device configurations. This pick is ideal for growers wanting a comprehensive environmental solution that includes humidity management.
Pros:- Automates both temperature and humidity for optimal plant growth
- Remote monitoring and control via Vivosun app
- Supports multiple devices with USB and outlets
Cons:- Dependent on WiFi stability for full functionality
- Limited compatibility with certain grow equipment that requires more advanced control
Best for: Indoor growers who need integrated temperature and humidity automation for grow tents and want remote control capabilities.
Not ideal for: Growers with high-power equipment exceeding 1800W or those who prefer stand-alone controllers without app integration.
- Power:15A 1800W
- Sensor:Temperature and Humidity Sensor Probe
- Connectivity:WiFi
- Ports:2 outlets, 2 USB ports
- Certification:ETL
- Automation:Scheduling and real-time alerts
Our verdict“This controller suits indoor growers seeking an all-in-one, WiFi-enabled environmental management system with humidity control.”
Inkbird ITC-308 Digital Temperature Controller Thermostat
The Inkbird ITC-308 (non-WiFi version) offers a reliable solution for controlling heating and cooling in greenhouses, fermenters, or freezers. Its dual relays support both functions, with an LCD display providing clear readouts of measured and set temperatures, similar to the WiFi model but without remote access. Compared to the WiFi-enabled version, it requires manual operation and lacks app control, which might limit ease of use for larger or more complex setups. The device’s simple digital interface makes it straightforward for users comfortable with basic controls, but its plastic construction and 1100W load capacity could be drawbacks for demanding environments. It’s a good fit for those who prioritize simplicity over remote operation or humidity management.
Pros:- Supports both heating and cooling modes for flexibility
- Easy-to-read LCD display with clear temperature readouts
- Simple operation suitable for basic greenhouse needs
Cons:- No WiFi or remote app control, limiting convenience
- Limited to 1100W maximum load, restricting high-power equipment use
Best for: Greenhouse owners who need a straightforward, dependable control for heating and cooling without the complications of WiFi or humidity monitoring.
Not ideal for: Growers seeking remote control, humidity management, or higher power capacity than 1100W, as this model is more basic in scope.
- Controller Type:Push Button
- Display Type:LCD
- Temperature Control Type:Heating and Cooling
- Voltage:110 volts
- Maximum Output Load:1100 W
- Additional Features:Temperature Display, Buzzer Alarm, Safety Features
- Mounting Type:Wall Mount
Our verdict“This controller is suitable for small-scale growers who prefer manual control and basic temperature regulation without remote features.”
VIVOSUN E42A+ GrowHub Environmental Controller for Grow, Smart App Control
The VIVOSUN E42A+ GrowHub is designed for dedicated indoor growers who want comprehensive control over multiple parameters, including temperature, humidity, and equipment automation. Its WiFi-enabled app allows for detailed customization of environmental settings, making it ideal for managing different growth stages. Compared to the simpler Inkbird models, the E42A+ offers more advanced features, but its setup can be complex for newcomers. The device supports various grow lights and fans, although some users may find mounting options limited. Its high user rating and features make it suitable for serious growers aiming for precise, remote management of their grow spaces, especially when integrated with other smart equipment.
Pros:- Remote control and monitoring via dedicated app
- Highly customizable automation settings for different growth stages
- Supports various grow equipment for a comprehensive environment
Cons:- Complex setup that may intimidate less experienced users
- Limited mounting options could restrict placement flexibility
Best for: Experienced indoor growers who need detailed automation, remote control, and customization for their grow environments.
Not ideal for: Beginners or growers with limited technical knowledge, as the setup and configuration could be challenging.
- Brand:VIVOSUN
- Model:GH-E42A
- Unit Count:1
- Features:Remote app control, customizable automation, temperature and humidity monitoring
Our verdict“This environment controller is ideal for advanced growers who value detailed, remote automation and are comfortable with technical setup.”
EVC-1 Environmental Controller
The EVC-1 Environmental Controller offers a straightforward, cost-effective solution for managing temperature, humidity, and CO2 levels, making it appealing for small-scale or budget-conscious growers. Unlike the more feature-rich VIVOSUN E42A+ or Inkbird WiFi models, the EVC-1 emphasizes simplicity and reliability over detailed automation or remote control. Its ease of use makes it suitable for those who want basic environmental management without complex setup. However, the lack of connectivity options and absence of user reviews can leave buyers uncertain about its long-term durability or compatibility with advanced equipment. This controller is best suited for growers who prioritize basic parameter control and affordability.
Pros:- Controls multiple parameters including temperature, humidity, and CO2
- Simple to operate, suitable for beginners
- Cost-effective alternative to more complex systems
Cons:- Limited details on specific features or connectivity options
- No user reviews available, making reliability uncertain
Best for: Small-scale or hobbyist growers seeking a simple, reliable environmental controller at an affordable price.
Not ideal for: Commercial growers or those needing remote monitoring, humidity control, or connectivity features, due to its limited details and connectivity options.
- Functions:Temperature, Humidity, CO2
- Ease of Use:Simple
- Reliability:Reliable
Our verdict“This controller is best for budget-conscious growers who need basic, reliable environmental management without remote features.”
Inkbird Digital Wi-Fi Humidity Controller IHC-200 Dual Outlet Pre-Wired Humidistat for Mushroom Growing, Curing Meat, Reptile, Greenhouse, Support Humidifier Dehumidifier Fan for iOS & Android
This Wi-Fi-enabled humidity controller stands out for its remote monitoring capabilities, making it ideal for growers who want to oversee humidity levels from anywhere. Compared with the Inkbird ITC-608T, which supports both temperature and humidity but requires more complex setup, the IHC-200 simplifies humidity control with a clear interface and dedicated app access. However, its reliance on stable Wi-Fi and limited to 2.4GHz networks can cause connectivity issues if your network isn’t robust. Its dual relay outputs are useful for controlling both humidifiers and dehumidifiers simultaneously, but calibration can be tricky, which may frustrate less experienced users. This pick is most suitable for growers who prioritize remote control and have reliable Wi-Fi.
Pros:- Remote control and monitoring via smartphone app
- Supports both humidifier and dehumidifier connections
- Easy plug-and-play installation with clear display
Cons:- Requires stable Wi-Fi connection for remote access
- Limited to 2.4GHz Wi-Fi networks only
- Some users report calibration challenges
Best for: Greenhouse operators who need real-time remote humidity adjustments via smartphone
Not ideal for: Growers with unstable Wi-Fi or less tech-savvy users who may struggle with calibration and setup
- Connectivity:Wi-Fi 2.4GHz
- Relay Output:Dual
- Voltage:100-230Vac 50/60Hz
- Max Power:1200W (120Vac), 2200W (220Vac)
- Humidity Measurement Range:10 – 99% RH
- Humidity Accuracy:+/- 3% RH to +/- 5% RH
Our verdict“This humidity controller is best for growers who want remote, app-based humidity management and have a reliable Wi-Fi network.”
TURBRO Smart Temperature Controller Heating Cooling, WiFi-Enabled Thermostat with Timer and Temperature Monitoring
The TURBRO TC01 excels in environments requiring stable temperature regulation, such as greenhouses or pet habitats. Unlike the Inkbird ITC-608T, which manages both temperature and humidity but can be complex for beginners, the TURBRO offers automatic heating and cooling with an intuitive app interface. Its safety features like alarms and waterproof sensors add peace of mind, but it only supports Wi-Fi on the 2.4GHz band, which could limit connectivity in some setups. Additionally, its maximum temperature of 212°F might not suit all applications, like high-temperature sterilization. This model makes the most sense for users seeking automated temperature control with minimal fuss, especially if they already have Wi-Fi coverage.
Pros:- Supports automatic heating and cooling management
- WiFi control via app for remote adjustments
- Includes safety alarms and waterproof temperature sensors
Cons:- Limited to 2.4GHz Wi-Fi networks
- Maximum temperature of only 212°F may limit some applications
Best for: Greenhouse growers or pet keepers needing reliable, remote temperature regulation with safety features
Not ideal for: Users requiring very high-temperature control or with unstable 2.4GHz Wi-Fi networks
- Temperature Range:14-212°F
- Input Voltage:AC 100-240V, 50/60Hz
- Max Output:15A, up to 1800W at 120V or 3000W at 240V
- Connectivity:WiFi 2.4GHz
- Temperature Units:Fahrenheit and Celsius
- Safety Features:Alarms, waterproof sensors
Our verdict“This thermostat is best for users seeking reliable, remote temperature control with safety features in stable Wi-Fi environments.”
Inkbird Temperature and Humidity Controller ITC-608T, Pre-Wired Dual Stage Thermostat, 120VAC, 15A, 1800W, ETL Listed
The Inkbird ITC-608T offers comprehensive control over both temperature and humidity, making it ideal for complex setups like mushroom cultivation or fermentation. Compared to the Inkbird IHC-200 which focuses solely on humidity, this model provides a more versatile solution but with added complexity, potentially overwhelming beginners. Its calibration feature and ETL listing for safety make it reliable for long-term use. However, proper setup is essential to avoid performance issues, and its 120V limitation means it’s less suitable for regions with higher voltage standards. This controller is best suited for users comfortable with configuration who need integrated climate management.
Pros:- Supports both temperature and humidity regulation
- ETL safety listing for reliability
- Includes calibration and multiple device support
Cons:- Requires proper setup and understanding of controls
- Limited to 120V power supply
- Complex for users unfamiliar with climate controllers
Best for: Experienced growers or hobbyists requiring dual temperature and humidity control with safety certifications
Not ideal for: Beginners or those with primarily humidity control needs, due to its complex setup process
- Max Load:120V 15A 1800W
- Temperature Range:-40°F to 212°F
- Humidity Range:5% to 99% RH
- Certifications:ETL Listed
- Control Outlets:2
- Voltage:120V
Our verdict“This device suits experienced users who need integrated temperature and humidity management with safety assurances and are comfortable with setup complexity.”
How We Picked
The products in this roundup were evaluated based on performance, ease of setup, build quality, and feature set. Priority was given to controllers that reliably regulate temperature and humidity, with support for remote access via WiFi or app control. We also considered versatility for different greenhouse sizes and types, as well as overall value for the price. Products that offered advanced features without sacrificing usability ranked higher, while those with significant drawbacks or limited compatibility were rated lower. This approach ensures that each pick caters to specific needs, from beginners to experienced growers.| greenhouse environmental controller | Connectivity |
|---|---|
| Inkbird WiFi ITC-308 Digital T | WiFi 2.4 GHz |
| VIVOSUN GrowHub Outlet Control | WiFi |
| Inkbird ITC-308 Digital Temper | — |
| VIVOSUN E42A+ GrowHub Environm | — |
| EVC-1 Environmental Controller | — |
| Inkbird Digital Wi-Fi Humidity | Wi-Fi 2.4GHz |
| TURBRO Smart Temperature Contr | WiFi 2.4GHz |
| Inkbird Temperature and Humidi | — |
Factors to Consider When Choosing Greenhouse Environmental Controller
Choosing the right greenhouse environmental controller involves understanding several key factors. The ideal device should match your greenhouse size, environmental complexity, and your tech comfort level. Beyond features, consider compatibility with existing equipment, ease of installation, and ongoing maintenance. Properly assessing these factors helps avoid common pitfalls like overpaying for unnecessary features or selecting a device that’s too basic for your setup.Size and Scope of Your Greenhouse
Determine the size of your greenhouse and the complexity of your environment before selecting a controller. Larger or more complex setups may require multi-stage controllers capable of managing both heating and cooling simultaneously. Smaller operations might do well with simpler, single-stage units, saving cost without sacrificing control. Overestimating your needs can lead to unnecessary expense, while underestimating can result in insufficient environmental regulation.
Connectivity and Remote Management
Controllers with WiFi or app integration provide the convenience of remote monitoring and adjustments, which is especially useful for larger or multiple greenhouses. However, such features often come at a higher price and may require a stable internet connection. Consider how often you’ll need remote access and whether the added complexity fits your comfort level. Basic models without connectivity still deliver effective control but lack the flexibility of remote management.
Ease of Installation and Use
Some controllers come pre-wired and ready to install, while others may require more technical setup. Think about your comfort with electrical wiring and programming. A straightforward, plug-and-play model reduces setup time and minimizes errors, but may lack advanced features. Conversely, more complex units with customizable settings can offer greater precision but demand a steeper learning curve.
Build Quality and Longevity
Since environmental controllers are often exposed to humidity and temperature fluctuations, durability matters. Look for products with robust casing and reliable sensors, ideally with certifications like ETL or UL. Investing in higher-quality units can prevent frequent replacements and ensure consistent performance over time, even in challenging conditions.
Cost and Value
Price varies widely based on features, brand reputation, and build quality. While budget options may seem attractive initially, they might lack durability or remote features, leading to higher costs later. Premium models often include advanced automation and reliable connectivity but come with a higher upfront investment. Balance your budget with your specific control needs to find the best value.
Frequently Asked Questions
Can I use a greenhouse environmental controller for both heating and cooling?
Yes, many controllers are designed to manage both heating and cooling systems, especially dual-stage models like the Inkbird ITC-608T. These units can switch between different outputs based on sensor readings, providing comprehensive climate control. Make sure your setup supports the controller’s maximum capacity and that you have compatible heating and cooling equipment. Proper wiring and configuration are essential for safe and effective operation.
Do I need WiFi for my greenhouse controller?
WiFi connectivity offers significant convenience by enabling remote monitoring and adjustments, which is valuable for larger or multiple greenhouses. However, basic wired controllers can still deliver reliable temperature and humidity regulation without the need for internet. If you prefer managing conditions from afar or getting alerts on your phone, investing in a WiFi-enabled model is worth considering, but ensure your internet connection is stable.
Are digital controllers more reliable than analog ones?
Digital controllers generally provide more precise and programmable control, making them better suited for sensitive crops or complex environments. They also often include features like remote access and multiple sensor inputs. Analog controllers can be simpler and more durable in harsh conditions but lack advanced features and fine-tuning. The choice depends on your specific needs and the complexity of your greenhouse environment.
How important is sensor placement for environmental controllers?
Sensor placement directly impacts the accuracy of environmental readings. Placing sensors near heat sources, vents, or drafts can lead to false readings and improper regulation. It’s best to position sensors in the area most representative of your crop’s typical environment, away from direct sunlight or equipment that causes temperature fluctuations. Proper placement ensures that the controller responds accurately to real conditions, maintaining optimal growth.
Can I upgrade my existing greenhouse controller later?
Many modern controllers are compatible with additional sensors or can be integrated into larger automation systems, allowing upgrades as your needs evolve. However, compatibility depends on the brand and model, so it’s wise to choose a system that supports expansion if you anticipate future growth. Upgrading may require additional wiring or software configuration, so plan for potential future modifications during your initial purchase.
Conclusion
For growers seeking a straightforward, reliable control system, the Inkbird WiFi ITC-308 offers excellent value and ease of use. Those with larger, more complex greenhouses will appreciate the Inkbird ITC-608T for its dual-stage capabilities. Beginners should consider plug-and-play models with simple interfaces, while experienced growers may prioritize smart features like remote control and integration. If budget is a concern, basic wired options still provide effective regulation, but investing in a quality model pays off in long-term reliability and precision. Ultimately, your choice should align with your greenhouse size, automation needs, and technical comfort level.
As an affiliate, we earn on qualifying purchases.Fall yard work Picks
leaf blowers
