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Item #:
224164736
Johnson Controls A421ABC-03C Electronic Temperature Control, 1 Switch, 9.75 ft. (3m)
Item #:
224164736
AED 534
Price Details
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*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Sunday, August 16
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The A421 Series Electronic Temperature Controls feature a three-button touchpad interface that can be set up to restrict user adjustments.
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What Stands Out
Precision Control
The A421ABC-03C provides highly accurate temperature regulation, ensuring optimal performance and comfort in various environments, significantly minimizing energy waste compared to standard models.
Versatile Applications
Designed for diverse applications, this electronic temperature control adapts seamlessly to different systems, making it an ideal choice for both residential and commercial environments.
User-Friendly Interface
Equipped with an intuitive user interface and a long 9.75 ft. sensor cable, the A421ABC-03C simplifies installation and configuration, making it accessible for both experienced and novice users.
Product Details
| Brand Name | Johnson Controls |
| Global Trade Identification Number | 10662011536588 |
| Manufacturer | Johnson Controls Inc |
| Part Number | A421ABC-03C |
| Model | A421ABC-03C |
| Included Components | A99BB-300C Temperature Sensor |
| Unit Count | 1.0 Count |
| Item Type Name | Johnson Controls |
| Display Type | LCD with touch |
| Color | Grey |
| Item Weight | 1 Pounds (450 grams) |
| Brand | Johnson Controls |
Who Should Buy?
-
HVAC Professionals
Ideal for HVAC technicians needing precise temperature control for efficient heating or cooling systems in various applications.
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Commercial Appliances
Perfect for commercial refrigeration units requiring reliable temperature regulation to ensure product safety and quality.
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Home Users
Great for homeowners aiming to manage temperature settings conveniently and enhance comfort in residential spaces.
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Basic Users
Not suitable for users who prefer simple temperature adjustments without advanced control features or programming requirements.
Product Description
Johnson Controls A421ABC-03C Electronic Temperature Control, 1 Switch, 9.75 ft. (3m)
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Customer Questions & Answers
-
Question:
What features does the Johnson Controls A421ABC-03C offer?
Answer: The Johnson Controls A421ABC-03C features a robust electronic temperature control system with a single switch operation for simplified functionality. It supports a wide temperature range for precise environmental management and includes a 9.75 ft (3m) sensor cable which enhances the positioning flexibility of the sensor. This model is ideal for various applications including HVAC systems, refrigeration units, and process control, ensuring efficient and accurate temperature regulation. -
Question:
How do I install the Johnson Controls A421ABC-03C?
Answer: Installation of the Johnson Controls A421ABC-03C is straightforward. Start by choosing an appropriate location for the thermostat and mount it securely. Connect the 9.75 ft sensor cable to ensure optimal sensor placement. It is crucial to follow the wiring diagrams provided in the user manual for correct connections to your HVAC or refrigeration system. This electronic control can automatically regulate your system's operation, enhancing both comfort and energy efficiency. -
Question:
What applications is the Johnson Controls A421ABC-03C suitable for?
Answer: The Johnson Controls A421ABC-03C is versatile and suitable for HVAC systems, refrigeration applications, and process temperature control. Its precise temperature management capabilities make it perfect for maintaining optimal conditions in commercial refrigeration systems and industrial applications. Users can rely on this control for maintaining consistent temperature levels, thus preventing spoilage in food storage or ensuring proper operating conditions in manufacturing processes. -
Question:
Can the Johnson Controls A421ABC-03C be used with different types of HVAC systems?
Answer: Yes, the Johnson Controls A421ABC-03C is compatible with various HVAC system types such as split systems, heat pumps, and commercial refrigeration units. Its adjustable settings allow users to customize temperature thresholds according to the specific requirements of different systems. This flexibility makes it a popular choice among professionals managing diverse HVAC environments, allowing for precise control and energy savings. -
Question:
Is the Johnson Controls A421ABC-03C programmable?
Answer: The Johnson Controls A421ABC-03C is not a programmable thermostat in the traditional sense, but it offers manual settings to regulate the temperature efficiently. Users can set desired temperature thresholds and rely on the built-in sensing capabilities for optimal performance. This simplicity ensures that users can maintain control without the complexities of programming, making it ideal for those who prefer straightforward temperature management. -
Question:
What kind of maintenance does the Johnson Controls A421ABC-03C require?
Answer: Maintenance for the Johnson Controls A421ABC-03C is minimal due to its durable design. Regularly check the sensor for any obstructions or dirt that could affect its accuracy. It’s advisable to inspect the electrical connections periodically to ensure everything is functioning correctly. Keeping the control clean and well-positioned ensures reliable performance and longevity, particularly in environments with fluctuating temperatures. -
Question:
What types of sensors can be used with the Johnson Controls A421ABC-03C?
Answer: The Johnson Controls A421ABC-03C comes with a compatible sensor cable that allows for temperature readings at a distance. Users can connect compatible thermistors or other appropriate sensors as needed, ensuring they meet the specific requirements of their applications. The adaptability of this temperature control unit makes it suitable for various environmental monitoring sectors, enhancing its usability across different industries. -
Question:
Where can I buy the Johnson Controls A421ABC-03C in UAE?
Answer: You can purchase the Johnson Controls A421ABC-03C Electronic Temperature Control from Ubuy, a trusted e-commerce platform that offers a wide range of HVAC and refrigeration products. Ubuy provides an easy way to find this model along with customer reviews and product details, ensuring you make an informed decision. Their platform is user-friendly, making it simple to navigate and select the best option for your needs. -
Question:
Does the Johnson Controls A421ABC-03C have a display?
Answer: The Johnson Controls A421ABC-03C does not feature a digital display, as it is designed primarily for basic temperature control functions without complex features. This design choice helps streamline operations and makes it more accessible for everyday users. By focusing on essential temperature regulation without additional distractions, it serves industries where simplicity and reliability are paramount. -
Question:
What is the temperature range for the Johnson Controls A421ABC-03C?
Answer: The Johnson Controls A421ABC-03C supports a wide temperature range, typically from -40°F to 230°F (-40°C to 110°C). This extensive range allows it to be used in various environments, from very low-temperature refrigeration applications to high-temperature industrial processes. Users appreciate the versatility of this temperature control, enabling effective management of diverse temperature-sensitive scenarios.
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Pros
- Accurate temperature control
- Easy to install
- Durable build quality
- User-friendly interface
- Versatile applications
Cons
- Occasional minor calibration required
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“Excellent experience”
11 June 2026 · via Trustpilot
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“I had an excellent experience with Ubuy UAE. I ordered a product from the USA, and the website clearly mentioned that deliveries might be delayed due to the current situation in the Middle East. Ubuy provided great value, transparent communication, and reliable delivery. Thank you, Ubuy UAE, for a fantastic shopping experience!”
17 June 2026 · via Trustpilot
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“On time delivery and great product at a really great price!”
8 April 2026 · via Trustpilot
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Last Updated on August 8, 2026
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AED 534
Order now and get it around Sunday, August 16
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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Features & Benefits
- Bright backlit LCD screen displays temperature
- Adjustable On and Off temperature set points
- Basic and advanced programming menus for easy setup
- Available in Type 1 (NEMA), IP20 (CE) or Type 4X (NEMA), IP67 (CE)
- Control range is -40 to 212°F or -40 to 100°C
- Suitable for surface or DIN rail mounting or in watertight, corrosion resistant surface mount enclosures
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