Choosing the right temperature controller for a fermentation chamber ensures your brews develop perfect flavors and consistency. The best overall pick, the Inkbird ITC-308, offers reliable dual-stage control with straightforward operation. For those seeking simplicity, the Dewenwils Digital Temperature Controller provides a user-friendly interface with versatile features. The main tradeoffs involve balancing precision, ease of setup, and price—more advanced models often cost more but deliver tighter control. Keep reading for a detailed comparison to help you find the best fit for your fermentation setup.
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Key Takeaways
- Dual-stage controllers like the Inkbird ITC-308 stand out for their ability to handle both heating and cooling with a single device, ideal for precise fermentation control.
- Build quality and sensor accuracy vary widely; waterproof sensors and high-quality probes significantly improve long-term reliability.
- Ease of use and setup complexity differ; beginner-friendly models often sacrifice some advanced features for straightforward operation.
- Price correlates with features—more affordable controllers may lack advanced timing or humidity control, which could matter for complex setups.
- Versatility in voltage and temperature range is critical; ensure the controller matches your specific chamber specifications for safe operation.
More Details on Our Top Picks
WH2408 Digital Temperature Controller 10A 1200W
The WH2408 stands out for its wide temperature range from -58°F to 230°F, making it highly adaptable for both heating and cooling needs in fermentation chambers, reptile tanks, or greenhouses. Its intuitive controls and 0.1°F resolution deliver precise regulation, comparable to more specialized controllers like the Inkbird ITC-308, but with a broader temperature scope. While it excels in versatility, its lack of waterproofing and the need for external safety measures mean it’s not suited for humid or saltwater environments. Unlike dedicated fermentation controllers, it requires careful placement and separate safety devices. Overall, this model is ideal for users seeking a flexible, safe, and accurate digital thermostat with a wide application range.
Pros:- Wide temperature regulation from -58°F to 230°F for diverse applications
- High control resolution of 0.1°F ensures precise temperature management
- Intuitive controls simplify setup for beginners
Cons:- Not waterproof; requires careful placement to avoid moisture damage
- Probe not suitable for prolonged saltwater immersion
- Needs separate safety devices for heating/cooling equipment
Best for: Home brewers and hobbyists who need a reliable, multi-purpose temperature controller for diverse applications.
Not ideal for: Wet or humid environments like saltwater aquariums or outdoor fermentation setups, where water resistance is necessary.
- Power Rating:1200W
- Voltage:120V
- Temperature Range:-58°F to 230°F (-50°C to 110°C)
- Ambient Temperature Range:-4°F to 140°F (-20°C to 60°C)
- Probe Length:1.5 inches (4.2cm)
- Control Resolution:0.1°F
Our verdict“This controller suits users needing versatile, precise regulation across various projects, but not in humid, water-prone settings.”
Inkbird Dual Stage DV 12V Digital Temperature Controller for Heating and Cooling
The Inkbird DV shines in applications requiring simultaneous heating and cooling, such as fermenters and greenhouses, thanks to its dual relay outputs. Its automatic switching and alarm features are a step above single-stage controllers like the WH1436A, providing more reliable regulation for sensitive processes. However, its reliance on a 12V power supply and lack of a dedicated user interface means it’s better suited for users comfortable with calibration and setup. Unlike the simpler WH2408, it offers more automation but at the cost of a steeper learning curve. This product is ideal for experienced homebrewers or greenhouse operators who need precise, automated dual-mode control.
Pros:- Dual relay outputs enable simultaneous heating and cooling control
- Automatic switching improves accuracy for sensitive fermentation
- Alarm features notify users of deviations or sensor errors
- Supports calibration for precise adjustments
Cons:- Requires understanding of calibration procedures
- Limited to 12V power sources, restricting flexibility
- No user-friendly interface or remote control options
Best for: Advanced homebrewers and greenhouse growers seeking precise, automatic temperature regulation with alarms and calibration features.
Not ideal for: Beginners or users unfamiliar with electrical calibration, due to its complexity and power requirements.
- Relay Outputs:2
- Voltage:12V
- Modes:Heating and cooling
- Alarm Features:High/low temperature alarms, sensor error alarm
- Application:Homebrewing, fermenters, greenhouses
Our verdict“This controller offers excellent precision for dual-stage control but is best suited for tech-savvy users with specific fermentation or greenhouse needs.”
WH1436A 10A Temperature Controller 110V Digital Thermostat Switch with NTC 10K Sensor
The WH1436A offers a straightforward solution for temperature regulation in applications like sous vide or pet breeding, with a broad range from -58°F to 230°F. Its plug-and-play design makes it accessible, especially with the waterproof sensor probe, which outperforms models like the Inkbird ITC-308 in durability. However, its limited load capacity of 10A and absence of Wi-Fi or remote features restrict its use to small-scale setups. Unlike more advanced controllers, it doesn’t support remote monitoring, but its waterproof sensor makes it ideal for humid environments. This pick is perfect for users wanting a reliable, easy-to-install unit with enhanced sensor durability.
Pros:- Waterproof sensor probe enhances durability in humid environments
- Wide temperature control range suitable for various applications
- Plug-and-play setup simplifies installation
Cons:- Limited to 10A maximum load, restricting use with high-power devices
- No remote or Wi-Fi control options
- Not compatible with 220V systems
Best for: Small-scale hobbyists or professionals needing a waterproof, simple temperature controller for sous vide or incubation.
Not ideal for: Large or complex setups requiring remote control, Wi-Fi connectivity, or higher power loads.
- Power:10A, 1100W at 110V
- Sensor:NTC 10K waterproof
- Measurement Range:-58°F to 230°F (-50°C to 110°C)
- Ambient Temperature Range:-40°F to 176°F (-40°C to 80°C)
- Probe Length:3 meters (9.8 feet)
- Modes:Heating and refrigeration
Our verdict“This controller delivers reliable, waterproof operation for small-scale projects but isn’t suited for high-power or remote setups.”
Inkbird ITC-308 Digital Temperature Controller Outlet Thermostat 2-Stage 1100W with Sensor
The Inkbird ITC-308 combines ease of use with reliable dual-stage temperature control, making it a favorite among hobbyists for applications like refrigeration and home brewing. Its large LCD and straightforward push-button operation simplify setup compared to more complex models like the DV 12V. While it doesn’t support Wi-Fi or remote features, its dual relay design allows for simultaneous heating and cooling, essential for stable fermentation environments. However, its maximum load of 1100W can be limiting for high-wattage equipment, and wall mounting is recommended for optimal placement. This controller makes an excellent choice for those seeking a balance between simplicity and dual-stage control.
Pros:- Large LCD display for clear temperature readings
- Supports both heating and cooling devices simultaneously
- Simple push-button controls for quick setup
- Supports Celsius and Fahrenheit
Cons:- Limited to 1100W maximum load
- No Wi-Fi or remote control features
- Requires wall mounting for best placement
Best for: Homebrewers or small-scale refrigeration enthusiasts who value ease of use and reliable dual-stage regulation.
Not ideal for: Users needing remote access or with high-powered equipment exceeding 1100W.
- Controller Type:Hand Control
- Additional Features:Programmable
- Specific Uses:Heat mat, Refrigerator, home brewing
- Temperature Control Type:Heating
- Display Type:LCD
- Wattage:1000 watts
Our verdict“This controller offers straightforward, reliable dual-stage regulation ideal for hobbyists prioritizing simplicity over remote connectivity.”
Inkbird ITC308 Digital Temperature Controller for Freezer, Refrigerator, and Heating Applications
The Inkbird ITC308 offers a versatile solution for refrigeration and heating, with dual outlets and simple calibration, making it suitable for fermentation chambers and greenhouses. Its straightforward setup and flexible display options provide good value, especially compared to more complex or expensive controllers. However, it is limited to a 110V supply and requires manual probe placement for accurate readings, which can be a downside for precise or large-scale operations. Unlike models like the WH2408, it doesn’t feature a wide temperature range or advanced alarms, but it covers the essential needs for hobbyist projects. This model is well-suited for users seeking an affordable, easy-to-calibrate controller for basic temperature management.
Pros:- Easy to set up and calibrate for accurate control
- Supports both heating and cooling simultaneously
- Dual outlets enable independent control of two devices
- Flexible display options for temperature units
Cons:- Limited to 110V power supply
- Manual probe placement may impact accuracy
- No remote or Wi-Fi capabilities
Best for: Budget-conscious hobbyists or small-scale gardeners needing reliable dual heating and cooling control.
Not ideal for: High-demand environments requiring remote monitoring, advanced alarms, or extensive temperature ranges.
- Voltage:110V
- Wattage:1200W
- Display:Centigrade or Fahrenheit
- Features:Simple setup, calibration, dual outlets
Our verdict“This controller provides essential dual-mode control at an affordable price, ideal for small-scale projects with basic needs.”
KETOTEK Digital Temperature Controller AC110V 10A Fahrenheit Thermostat with Waterproof Sensor and Dual Relays
This model stands out for its high accuracy, supporting ±1°F precision, making it ideal for fermentation setups where tight temperature control matters. Compared with the Inkbird ITC-308, the KETOTEK offers waterproof sensing, which is invaluable in humid environments, though it requires wiring and lacks included outlets. Its dual relays facilitate both heating and cooling, but because it operates solely at 110V, it limits flexibility for different power setups. The ability to calibrate temperature and set alarms adds safety and reliability, though its need for an external power supply and wiring makes it less plug-and-play than some alternatives.
Pros:- High accuracy with ±1°F precision ensures stable fermentation conditions
- Waterproof sensor ideal for humid or wet environments
- Supports both heating and cooling with dual relays for versatility
- Includes calibration and alarm features for safety
Cons:- Requires additional wiring and power supply setup for load connections
- No outlets included, increasing installation complexity
- Limited to 110V applications, reducing compatibility
Best for: Brewers or fermenters in moist environments needing accurate, waterproof control with safety alarms
Not ideal for: Home users seeking plug-and-play simplicity or those with 220V setups, as this is limited to 110V and requires wiring
- Controller Type:Hand Control
- Additional Features:Auto Changeover
- Specific Uses:Temperature Control
- Temperature Control Type:Digital
- Connectivity Technology:Wired
- Power Source:AC 110V
- Display Type:LCD
- Control Type:Push Button
- Mounting Type:Wall Mount
Our verdict“This controller suits experienced users who need precise, waterproof control in humid fermentation environments willing to handle wiring setup.”
Inkbird ITC-308 Digital Temperature Controller 2-Stage Outlet Thermostat for Heating and Cooling
The Inkbird ITC-308 is a favorite for DIY enthusiasts thanks to its dual relays, clear dual display, and straightforward setup. It supports both heating and cooling modes, making it flexible for small-scale fermentation or greenhouse control, but its maximum load of 1100W limits use with high-power devices like large incubators. Compared with the Dewenwils controller, the Inkbird’s simple interface and familiar design make it accessible for beginners, though it requires a good understanding of temperature settings for optimal operation. Its alarms for high and low temps add safety, but the device’s reliance on user calibration means it’s less plug-and-play than some models.
Pros:- Supports both heating and cooling with dual relays for flexible control
- Dual display shows current and set temperatures clearly
- High and low temperature alarms enhance safety
- Simple setup ideal for home use
Cons:- Limited to 1100W maximum load, unsuitable for larger or high-power fermenters
- Requires user understanding of temperature calibration for accuracy
- No waterproof sensor, less suited for humid environments
Best for: Homebrewers or hobbyists seeking an easy-to-understand, dual-stage controller for small fermentation chambers
Not ideal for: High-power applications or users unfamiliar with setting temperature thresholds, as it caps at 1100W and needs calibration
- Maximum Output Load:1100 W
- Voltage:110V
- Current:10A
Our verdict“This controller offers straightforward operation for small-scale fermentation, especially for those new to digital thermostats.”
Dewenwils Digital Temperature Controller, 15A/1800W Thermostat Outlet Plug with VA Display, -40℉ to 210℉, Cyclic Timing and Countdown for Greenhouse Incubator
This Dewenwils model excels in environments demanding high wattage and versatile modes, supporting up to 1800W and a broad temperature range from -40℉ to 210℉. It features cyclic timing, countdown modes, and a self-illuminating VA display, making it suitable for larger incubators, greenhouses, or extensive fermentation setups. Compared to the Inkbird models, its higher wattage capacity accommodates bigger devices, but its complexity in managing multiple modes requires familiarity with cyclic and countdown functions. Its power memory feature is useful, yet the device’s size and the need to understand its multiple modes make it less ideal for straightforward, small projects.
Pros:- Supports up to 1800W, suitable for large appliances
- Wide temperature range for extreme environments
- Clear VA display remains visible in darkness
- Multiple modes for flexible temperature management
Cons:- Requires understanding of cyclic timing and countdown functions
- Size and complexity may overwhelm casual users
- Limited to 15A outlets; installation might be more involved
Best for: Large-scale fermenters or greenhouses needing high power and multiple operational modes
Not ideal for: Simple, small-batch fermentations or users unfamiliar with cyclic timing and advanced mode functions
- Power Output:15A/1800W
- Temperature Range:-40℉ to 210℉
- Display:VA display
- Modes:Heating, Cooling, Cyclic Timing, Countdown
- Features:Power memory, temperature calibration
Our verdict“This controller is best for experienced users managing large, high-power fermentation chambers or greenhouses needing versatile control modes.”
Intelligent Temperature-Controlled Fermentation Chamber with Adjustable Temperature and Humidity
This fermenter chamber offers a dedicated solution with fine 1°C temperature adjustments from 20°C to 45°C and humidity above 85%, making it ideal for precise fermentation processes like yogurt, rice wine, or dough. Unlike generic controllers, it integrates both temperature and humidity control, simplifying setup for specific fermentation needs. Compared with digital controllers like the Dewenwils, this chamber provides a fully integrated environment with independent control of parameters, but its limited temperature range and size may restrict larger or more diverse batches. Its electronic panel is intuitive, yet it lacks smart connectivity features that some users might desire for remote monitoring.
Pros:- Precise 1°C temperature adjustments for consistent results
- High humidity maintenance above 85% ideal for many fermentations
- Integrated design reduces setup complexity
- Easy-to-operate electronic control panel
Cons:- Limited temperature range may not suit all fermentation types
- Size could be restrictive for larger batches
- No smart or remote connectivity options
Best for: Serious fermenters or small commercial setups requiring stable, automated temperature and humidity control
Not ideal for: Large-scale fermentation or projects needing broader temperature ranges or smart features
- Temperature Range:20°C to 45°C
- Temperature Adjustment:1°C increments
- Humidity:Above 85%
- Tray Size:450mm x 330mm
- Number of trays:3
Our verdict“This chamber is a strong choice for dedicated fermentation projects needing tight control over temperature and humidity in a compact, automated unit.”
Digital Temperature Controller 2-Stage Outlet Thermostat, 110V, 10A
This controller makes a compelling case for budget-conscious users needing dual-stage control, supporting up to 1100W and offering dual display monitoring. Its simplicity and plug-and-play design make it approachable for beginners, but its maximum load of 1100W limits its use with larger fermenters or high-power devices. Compared with the Dewenwils model, it’s less feature-rich—lacking advanced modes like cyclic timing—but its straightforward controls and buzzer alarm make it reliable for basic temperature management. Its limited power capacity and lack of smart features mean it’s best suited for small, low-power setups where ease of use matters most.
Pros:- Supports both heating and cooling with dual relays
- Dual display facilitates easy monitoring
- Simple plug-and-play setup with intuitive controls
- Buzzer alarm adds basic safety alert
Cons:- Limited to 1100W maximum load, restricting larger setups
- No advanced modes like cyclic timing or remote control
- Basic features may not suit experienced users needing more automation
Best for: Beginners or hobbyists managing small fermentation chambers or low-power heating/cooling setups
Not ideal for: High-power or complex environments requiring modes like cyclic timing or larger capacity
- Voltage:110V
- Current:10A
- Power Capacity:1100W
Our verdict“This thermostat is ideal for entry-level users seeking reliable dual-stage temperature control on a tight budget.”
Digiten Digital Temperature Controller for Heating & Cooling – 110V, 15A, 1650W
The Digiten Digital Temperature Controller stands out for its high accuracy, waterproof sensor, and straightforward two-step programming, making it a reliable choice across a range of setups like brewing, refrigeration, and greenhouse management. Compared to the Zerodis controller, it offers a larger LCD display and waterproofing, but is limited to 110V power, which could be a drawback for users with higher wattage needs or different voltage standards. Its simple interface is ideal for users who want effective control without complex customization. However, it lacks advanced features like detailed calibration options or multi-zone regulation, which might matter to seasoned enthusiasts. For those seeking a flexible, easy-to-use controller for moderate power loads, this model delivers strong performance.Pros:- High accuracy and waterproof sensor for reliable operation
- Large, glare-free LCD display for easy reading
- Simple two-step programming for heating and cooling modes
Cons:- Limited to 110V power supply, requiring converters for other voltages
- Maximum output power may not support high-wattage devices
- Lacks advanced customization features
Best for: Home brewers and hobbyists needing reliable, straightforward temperature control in various environments.
Not ideal for: Commercial operations or high-wattage industrial setups requiring more customization and higher power capacity.
- Voltage:110V
- Current:15A
- Power:1650W
- Sensor Material:Silicone
- Display:LCD
- Temperature Units:°C/°F
- Max Output Load:1650W@110V
- Warranty:12 months
Our verdict“This controller is a solid choice for users needing dependable, easy-to-operate temperature regulation in moderate power applications.”
Zerodis Digital Temperature Control with Sensor – Precise Cooling and Heating for Fermentation Chambers
The Zerodis controller excels in delivering highly precise temperature regulation over a broad range from -50°C to 110°C, making it excellent for fermentation chambers where accuracy is critical. Unlike the Digiten, it offers an expanded temperature range and ±1°C accuracy, but its setup may be slightly more complex for newcomers, and build quality details are sparse. It features simple mode switching and alarm functions, which add safety and convenience for careful fermentation processes. Its focus on precision makes it less suitable for applications where simplicity and quick setup are prioritized. For advanced users managing sensitive fermentation or experimental chambers, this controller offers the necessary fine-tuning, although beginners may find its configuration less intuitive.Pros:- Precise temperature control with a broad range from -50°C to 110°C
- Easy mode switching and alarm functions for safety
- Simple setup suitable for experienced users
Cons:- Lack of detailed build quality information
- Potential complexity for beginners unfamiliar with digital controllers
Best for: Brewers and fermenters requiring exact temperature control with alarms and a wide temperature range.
Not ideal for: Users who prioritize quick setup and minimal configuration or those with basic temperature needs.
- Temperature Range:-50°C to 110°C
- Accuracy:±1°C
- Voltage:AC110~220V
Our verdict“Ideal for experienced fermenters needing precise, customizable temperature control within a wide range, but less suited for novices.”
Digital Temperature Controller Thermostat for Fermenters and Refrigerators, 110-220V AC
The Digital Temperature Controller from this lineup offers a balanced mix of safety, durability, and ease of use, supporting both heating and cooling from -50℃ to +99℃ with high ±1℃ accuracy. Its user-friendly LCD screen makes monitoring straightforward, and its support for 110-220V applications broadens its usability. Compared to the Zerodis, it emphasizes reliability and robust construction with flame-retardant ABS plastic, but it doesn’t specify calibration options, which could matter for high-precision needs. This model is well-suited for those who want a sturdy controller with broad compatibility and moderate complexity, but it might not satisfy professionals needing ultra-fine calibration or multi-zone control.Pros:- Easy-to-read LCD for monitoring
- Supports both heating and cooling
- Wide temperature range with high accuracy
Cons:- Limited information on calibration or fine-tuning
- No advanced multi-zone or programmable features
Best for: Home or small-scale commercial fermenters seeking durable, reliable temperature regulation with wide voltage compatibility.
Not ideal for: High-end industrial setups requiring detailed calibration controls or multi-zone temperature management.
- Sensor Probe Length:1 meter
- Voltage Range:110-220V AC
- Temperature Range:-50°C to 99°C
- Accuracy:±1°C
- Power Consumption:<3W
- Material:Flame-retardant ABS plastic
Our verdict“A dependable, versatile controller suited for users needing durable operation and broad voltage support in fermentation or refrigeration setups.”
How We Picked
I evaluated these temperature controllers based on performance, durability, ease of setup, and value. Priority was given to devices with reliable sensors, clear user interfaces, and the ability to handle both heating and cooling. I also considered build quality, sensor accuracy, and compatibility with common fermentation chamber configurations. The ranking reflects a balance between affordability and advanced control features, ensuring options for beginners as well as seasoned brewers. Devices with proven longevity and positive user feedback earned higher positions, while those with limited functionality or questionable durability were rated lower.Factors to Consider When Choosing Temperature Controller For Fermentation Chamber
Selecting a temperature controller for your fermentation chamber involves several key considerations. The right device not only maintains optimal temperature conditions but also fits your experience level, setup complexity, and budget. Understanding these factors can prevent costly mistakes and ensure your brewing process stays consistent and reliable.Control Type and Features
Decide whether you need a single-stage or dual-stage controller. Dual-stage models like the Inkbird ITC-308 allow simultaneous heating and cooling, which is essential for maintaining tight temperature ranges. Consider if you need additional features such as humidity control, cycling timers, or remote monitoring. These extras can improve precision but often come with a higher price and complexity.
Ease of Use and Setup
Some controllers feature intuitive interfaces with simple plug-and-play setups, perfect for beginners. Others offer advanced menus and programming options suited for experienced brewers. Be wary of overly complex devices if you’re just starting out, and look for models with clear instructions and reliable customer support. Proper setup minimizes calibration issues and ensures accurate temperature regulation.
Sensor Quality and Accuracy
High-quality sensors, especially waterproof probes, provide more consistent readings over time. Inaccurate sensors can lead to temperature swings that compromise your fermentation. Check if the device includes a calibration option and whether the sensor is replaceable. Investing in a controller with precise sensors generally pays off with more stable brewing conditions.
Build Quality and Reliability
Durability matters, especially if your fermentation chamber operates in humid or variable environments. Look for controllers with sturdy enclosures and sensors designed to withstand moisture. Devices with a proven track record and positive user reviews tend to be more dependable, reducing the risk of sudden failures mid-brew.
Price and Value
While budget models can suit simple setups, investing a bit more often yields better control, longer lifespan, and additional features. Balance your needs against your budget, and consider future upgrades. Remember that a reliable controller is an essential investment in achieving consistent fermentation results, so choose one that offers the best mix of features and durability within your price range.
Frequently Asked Questions
Can I use a standard temperature controller for both brewing and fermentation?
Yes, many controllers are versatile enough to handle both brewing and fermentation applications, provided they support the necessary temperature ranges and have dual-stage control if needed. However, ensure that the device’s maximum temperature and power capacity match your chamber’s requirements. Using a controller outside its specified limits can cause safety hazards or device failure, so always verify compatibility before use.
How accurate does my temperature controller need to be for fermentation?
For most fermentation processes, maintaining temperature within 1-2°F (0.5-1°C) suffices, but some brewers prefer tighter control, especially for delicate strains. Accurate sensors and stable controllers help achieve this. If your setup involves sensitive yeast strains or specific flavor profiles, investing in a high-precision controller can make a noticeable difference in the final product.
Is it better to buy a dedicated fermentation chamber controller or a general-purpose HVAC controller?
Dedicated fermentation chamber controllers are typically easier to set up, more reliable, and tailored to brewing needs, offering features like cycle timers and precise temperature calibration. HVAC controllers can work, but they often lack brewing-specific functions and may require additional adjustments. For most homebrewers, a purpose-built fermentation controller simplifies operation and enhances control accuracy.
What should I look for in the sensor when choosing a temperature controller?
Choose sensors with high accuracy, stability, and waterproofing if your chamber environment is humid. NTC thermistors are common and reliable, but ensure the sensor’s temperature range suits your needs. A replaceable sensor can be advantageous if calibration drifts over time. Good sensor placement—away from heat sources or cold spots—also improves temperature stability.
How important is the controller’s power capacity relative to my chamber’s size?
The controller’s rated power must match or exceed your fermentation chamber’s total load to operate safely. An undersized controller can trip or fail to regulate temperature properly, risking spoilage or equipment damage. Always check the wattage requirements of your heating and cooling devices and select a controller with a comfortable margin of capacity to avoid overloads.
Conclusion
For most homebrewers and fermenters, the Inkbird ITC-308 offers a reliable balance of features, ease of use, and affordability, making it the best overall choice. If you’re on a tight budget or just starting out, the Dewenwils Digital Temperature Controller provides straightforward operation at a lower price. Those seeking premium build quality and advanced features should consider higher-end models with expanded controls. Beginners aiming for simplicity will benefit from plug-and-play options, while experienced brewers needing precise, multi-stage control may prefer dual-stage controllers with sensor calibration. Ultimately, your choice depends on your specific setup, budget, and desired level of control.
