- 1x VIVOSUN Seedling Heat Mat Thermostat
- 1x Temperature Sensor Probe
- 1x Hanging Tab & Wall Mount
VIVOSUN Seedling Heat Mat Thermostat
- Maintains exact temperatures between 40-108°F for consistent root zone warmth
- Digital sensor probe measures heat directly at the root level rather than reading ambient air
- Universal plug works with any standard seedling heat mat and includes a built-in wall mount
- 1-year manufacturer's warranty
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Who This Is For
- You are adding a digital controller because guessing the mat temperature leads to inconsistent germination rates.
- You are installing a root zone probe because checking the ambient air doesn't protect the roots from overheating.
What We Found
- The hexagonal grip seems like a minor detail until you try to adjust settings with wet hands in a humid environment.
- We always suggest using the wall mount because it keeps the controller clear of drainage water on the floor.
What Users Say
- Users who switched from timer-based setups say they stopped checking trays manually since the probe holds a set temp.
- Growers who used this with non-brand mats say it rescued their old gear by adding missing precision.
VIVOSUN Seedling Heat Mat Thermostat
Are inconsistent temperatures sabotaging your seedling propagation and wasting valuable seeds? Take the guesswork out of germination with the VIVOSUN Seedling Heat Mat Thermostat, the ultimate tool for precise temperature control. It ensures your plants get the consistent warmth they need for explosive root growth and successful sprouting, every time.
Designed for dedicated home gardeners and commercial growers, this digital controller maintains your set temperature within a 40-108°F range. The clear digital display and included sensor probe allow you to monitor the actual root zone temperature, providing far more accuracy than ambient air readings. This level of precision makes it an essential piece of VIVOSUN propagation equipment.
Engineered from extra-fortified plastic with a unique hexagonal grip, this thermostat is built to withstand the humid, demanding conditions of any grow environment without rusting or malfunctioning. It pairs perfectly with any heat mat, including the VIVOSUN 10″ x 20.75″ Seedling Heat Mat, and features a convenient hanging tab and wall mount to keep your space organized and safe.
What's Included
Features




Precise Digital Control
Maintains exact temperatures within a 40-108°F range for optimal germination and growth.
Accurate Sensor Probe
Measures the actual root zone temperature, giving you reliable data for perfect conditions.
Professional Construction
Built with extra-fortified plastic and a unique hexagonal grip to prevent rust and malfunction.
Universal Compatibility
Works seamlessly with any standard seedling heat mat and includes convenient mounting options.
Specifications
| Specification | Value |
|---|---|
| Temperature Control Range | 40-108°F (4.5-42°C) |
| Temperature Display Range | 32-210°F (0-99°C) |
| Construction Material | Extra-Fortified Plastic |
| Design | Hexagonal Grip Shape |
| Compatibility | Universal Heat Mat Compatibility |
| Power Configuration | 120V / 60Hz / 1000W Max |
| Included Accessories | Sensor Probe, Hanging Tab, Wall Mount |
Support & Manuals
Warranty
This VIVOSUN product comes with a 1-year manufacturer's warranty. Please contact customer support for any claims or inquiries to ensure your equipment runs smoothly.
FAQs
Most seeds germinate best in a temperature range of 68-86°F (20-30°C). This thermostat allows you to precisely dial in the perfect temperature for your specific plant varieties, ensuring a higher success rate.
Yes, the VIVOSUN thermostat is designed with universal compatibility and works with any standard seedling heat mat that uses a North American outlet, up to a maximum of 1000W.
The sensor probe is placed directly into the soil or growing medium. This allows the thermostat to read the actual temperature at the root zone, rather than the ambient air temperature, and make precise adjustments to the heat mat. This ensures your seedlings' roots are kept at the optimal temperature for healthy development.
Absolutely. It is constructed from extra-fortified, water-resistant plastic to prevent rust and malfunction, making it perfectly safe for the high-humidity environment inside VIVOSUN grow tents and other propagation areas.
You can control multiple heat mats as long as their combined wattage does not exceed the thermostat's 1000W maximum limit. Simply plug a power strip into the thermostat and connect your heat mats to the strip. However, for the most accurate reading, the sensor probe should be placed in one centrally located tray.
For a fully optimized setup, consider pairing this thermostat with a VIVOSUN heat mat combo kit and a humidity dome. For precise environment management, the Vivosun GrowHub E25 controller can automate your entire grow space. You can find more tips in our guide to controlling grow room temperature and humidity.
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.