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Item #:
97517312
OJ Microline Thermostat with Built-in GFCI UDG4-4999. Touch Screen Programmable Thermostat for Radiant Floor Heating System, with Dual Sensing and
88% of respondents would recommend this to a friend
Item #:
97517312
XCD 585
Price Details
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What Stands Out
Touch Screen Control
The intuitive touch screen interface allows for easy programming and adjustments, ensuring user-friendly operation and seamless interaction for optimal temperature management.
Dual Sensing Technology
Equipped with dual sensing capabilities, this thermostat accurately monitors both air and floor temperatures, enhancing comfort and efficiency in radiant floor heating systems.
Built-in GFCI
The built-in ground fault circuit interrupter (GFCI) ensures safety by preventing electrical shock, making it a reliable choice for any heating environment while enhancing user confidence.
Product Details
| Controller Type | Floor Heating Thermostat 120V and 240V |
| Additional Features | Programmable |
| Specific Uses For Product | Floor Heating |
| Temperature Control Type | Floor Heating |
| Connectivity Technology | Wired |
| Power Source | AC |
| Voltage | 240 Volts |
| Display Type | touchscreen |
| Screen Size | 3.5 Inches (8.9 cm) |
| Control Type | Touch |
| Control Method | Touch |
| Connectivity Protocol | BACnet MS/TP |
| Mounting Type | Wall Mount |
| Backlight | Yes |
| Wattage | 1800 watts |
| Material Type | Other |
| Finish Types | Black |
| Brand Name | OJ Electronics |
| Included Components | Floor Sensor |
| Model Number | UDG4-4999-B |
| Manufacturer | OJ Electronics |
| Unit Count | 1.0 Count |
| Color | White |
| Shape | Rectangular |
| Product Style | Touch / Programmable |
| Item Dimensions D x W x H | 3.5"D x 3.5"W x 3.5"H (8.9 x 8.9 x 8.9 cm) |
| Specification Met | energy |
| Brand | OJ Electronics |
| Product Dimensions (L x W x H) | 3.5"D x 3.5"W x 3.5"H (8.9 x 8.9 x 8.9 cm) |
| Special Feature | Programmable |
Who Should Buy?
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Homeowners
Ideal for homeowners seeking advanced control over their radiant floor heating systems for improved comfort and efficiency.
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Tech-Savvy Users
Perfect for users who appreciate touch screen technology and programmable settings for personalized heating schedules.
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Eco-Conscious Individuals
Great option for environmentally aware individuals wanting to optimize energy use with dual voltage and sensing capabilities.
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Budget-Conscious Buyers
Not suitable for those looking for inexpensive heating solutions, as it may have a higher upfront cost.
Product Description
OJ Microline Thermostat with Built-in GFCI UDG4-4999. Touch Screen Programmable Thermostat for Radiant Floor Heating System, with Dual Sensing and Dual Voltage Capabilities. Includes Floor Sensor
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Customer Questions & Answers
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Question:
What is the main function of the OJ Microline Thermostat UDG4-4999?
Answer: The OJ Microline Thermostat UDG4-4999 primarily functions to control radiant floor heating systems effectively. It offers programmable temperature settings, allowing users to set specific heating schedules based on their personal preferences and daily routines. This ensures optimal comfort and energy efficiency as the system can automatically adjust according to when you are at home or away. For example, you can program it to lower the temperature during work hours and warm up just before you return, enhancing both convenience and comfort. -
Question:
Is the OJ Microline Thermostat compatible with all radiant floor heating systems?
Answer: Yes, the OJ Microline Thermostat UDG4-4999 is compatible with most radiant floor heating systems, including electric and hydronic setups. This versatility is important since it allows homeowners to upgrade their heating controls without replacing their entire system. Before installation, it's essential to verify compatibility with your heater type and configuration for optimal performance. For instance, if you have an electric heating system and wish to install a programmable thermostat, this product would be a perfect choice. -
Question:
What are the benefits of having a touch screen on the OJ Microline Thermostat?
Answer: The touch screen feature of the OJ Microline Thermostat UDG4-4999 enhances user interaction significantly. It simplifies the process of adjusting settings through an intuitive interface that makes it easy to view and change temperature settings at a glance. Additionally, this modern design often includes visual indicators for current heating status and programming options. For instance, a quick touch can change any programmed schedule without needing to fumble through complicated buttons, making it user-friendly for all ages. -
Question:
Can I program the OJ Microline Thermostat for different rooms?
Answer: The OJ Microline Thermostat UDG4-4999 allows for zoning capabilities, meaning you can program distinct heating settings for different areas if you have a multi-zone system. This is particularly useful in larger homes where different rooms may have different heating needs based on usage and occupancy. For example, you can maintain a cozy temperature in the living room while keeping a cooler setting in less-used bedrooms, optimizing energy usage while ensuring comfort. -
Question:
What is GFCI protection and why is it important?
Answer: GFCI, or Ground Fault Circuit Interrupter, protection is a safety feature integrated into the OJ Microline Thermostat UDG4-4999 that prevents electrical shocks by interrupting the power supply in the event of a ground fault. This feature is critical when using heating systems in areas with high moisture levels, like bathrooms or kitchens, where water and electricity could pose a hazard. It substantially enhances user safety, making it ideal for any setting where radiant heat is needed in proximity to water sources. -
Question:
How does dual sensing work in the OJ Microline Thermostat?
Answer: The dual sensing capability in the OJ Microline Thermostat UDG4-4999 monitors both floor and air temperature to ensure a balanced heating experience. This technology helps maintain the perfect temperature to keep your floors warm while avoiding overheating and ensuring a comfortable environment. For example, in a chilly room, the system can prioritize heating the floor without making the air too warm, thus providing consistent and cozy conditions without unnecessary energy use. -
Question:
How can I install the OJ Microline Thermostat?
Answer: Installing the OJ Microline Thermostat UDG4-4999 involves connecting it to your radiant floor heating system, which may require an electrical or heating professional. The thermostat includes a straightforward instructional manual that guides you through the connection process, ensuring correct wiring for optimal functionality. It’s important to follow these guidelines since incorrect installations can affect performance and safety. Once installed, you can set your preferences through the touch screen for a tailored heating experience. -
Question:
Is the thermostat energy efficient?
Answer: Yes, the OJ Microline Thermostat UDG4-4999 is designed with energy efficiency in mind. The programmable features allow users to schedule heating times, decreasing energy consumption when the space is unoccupied. Furthermore, dual sensing helps avoid overheating, striking a balance between comfort and efficiency. By using this thermostat wisely, such as lowering settings when no one is home, users can notice significant savings on their energy bills over time. -
Question:
What maintenance does the OJ Microline Thermostat require?
Answer: The OJ Microline Thermostat UDG4-4999 requires minimal maintenance to ensure it operates fully efficiently. Regularly check the display and settings for proper operation, and clear any dust or debris from the thermostat to maintain touch screen functionality. It’s also a good idea to periodically review your programming settings to optimize for seasonal changes. This helps your thermostat maintain accuracy in temperature control and ensure it does not require recalibration during shifts in weather. -
Question:
Where can I buy the OJ Microline Thermostat UDG4-4999?
Answer: You can purchase the OJ Microline Thermostat UDG4-4999 on Ubuy, a reliable platform known for offering a wide range of electronic products. Ubuy provides a user-friendly shopping experience, along with the ability to read customer reviews, ensuring you make an informed decision. Whether you're upgrading your heating system or installing a new thermostat for the first time, Ubuy is a great marketplace to explore your options and find the right product.
OJ Electronics Programmable UDG4-4999-B Editorial Review
OJ Microline Thermostat with Built-in GFCI UDG4-4999 is an impressive solution for anyone looking to enhance their radiant floor heating system. This model, with its dual voltage capabilities and touchscreen interface, offers a user-friendly experience, allowing you to program heating schedules easily. Some users have praised it as a great alternative to more expensive models, highlighting its efficiency and reliability after years of use. However, a few have pointed out the inconvenience of not having a straightforward way to turn off the unit during summer months, requiring them to switch off the breaker instead. Overall, the OJ Microline UDG4-4999 has garnered positive attention from homeowners.
Customer Reviews & Ratings
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Pros
- Touchscreen interface is user-friendly
- Compatible with 120V and 240V systems
- Great alternative to high-priced models
- Includes floor sensor for accurate readings
- Programmable features for customized heating
Cons
- Turning it off in summer is not intuitive.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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Features & Benefits
- Intuitive touchscreen with programmable feature for 7-day comfort.
- Dual voltage compatibility (120V/240V) for versatile installations.
- Self-learning adaptive function to reduce energy consumption.
- Responsive 3.5-inch color screen enhances modern decor.
- Specializes in electric radiant floor heating for various flooring types.
- Includes floor sensor and limiting features for added safety.
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