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Dimensions: 86 × 86 × 10 (mm)
Color Options: White, Black
Control Type: Single-pole
Control Methods: Touch-activated, push-button
Rated Voltage: AC110-240V
Rated Current: 16A
Physical metal rotary knob for quick parameter adjustment, short‑press knob for power on/off; responsive touch buttons for mode, timer setting. Easy operation for all‑age users.
2.4GHz WiFi connection, control your heating anywhere via Tuya / Smart Life APP. Support voice command from Amazon Alexa, Google Home Assistant, Tmall Genie, Xiao‑du, Yandex Alice. Set target temperature by simple voice instruction.
Custom heating schedule for 5+2 / 6+1 /7‑day modes. Separate temperature plans for workdays and weekends. Auto switch between comfort & energy‑saving mode, cut down heating cost effectively. Manual / Auto / Constant‑temperature energy‑saving optional modes.
Temperature control accuracy ±1℃, adjustable temperature range 5‑90℃, adjustable start‑up temperature difference:0.5‑5℃. Support temperature calibration(‑9℃ ~ +9℃). Built‑in high‑temperature protection prevents overheating risk. Intelligent child lock avoids mis‑operation by kids.
HD LED digital display, real‑time show room temperature, time, week, humidity & weather status. Screen brightness adjustable on device or mobile App.
Multiple variants for different heating loads:
• 16A /25A for electric floor heating (with 3‑meter external temperature sensor cable)
• 3A for water heating / gas boiler system
Fit for home, office, shopping mall, hotel, school and public building projects.
AC90‑240V wide‑voltage input, CE, ROHS, FCC certified. Fire‑retardant housing, long mechanical & electrical service life. Standard 86‑mount box installation, mounting hole distance 60mm. 2‑year manufacturer warranty.
1 × Installation accessories（sensor cable included for electric heating versions）
1 × User Manual
Note: Price shown on page is reference price, please contact us for bulk order discount.
Technical Specifications：
| Item | Specification |
| Model | NVK‑SDM9 |
| Brand | NVK |
| Certification | CE, ROHS, FCC |
| Working Voltage | AC 90‑240V 50‑60Hz |
| Rated Current | 3A(Water/Boiler);16A /25A(Electric floor heating) |
| Max Load Power | 3200W |
| WiFi Spec | 2.4GHz WiFi only |
| Control Method | Touch + Rotary knob + Tuya Smart Life APP + Voice control(Alexa, Google Assistant etc.) |
| Application Scenario | Electric underfloor heating / Water floor heating / Gas boiler heating |
| Temperature Measuring Range | 5‑90℃ |
| Temperature Accuracy | ±1℃ |
| Temperature Calibration Range | ‑9℃ ~ +9℃ |
| Start‑up temperature difference | 0.5‑5℃ adjustable |
| Program Schedule | 5+2 /6+1 /7‑day weekly programmable |
| Special Function | Child Lock, Over‑heat Protection, Screen brightness adjustable, Weather & Humidity display, Timing On/Off |
| Display | HD LED digital screen |
| Housing Material | Flame‑retardant PC+ABS |
| Dimension | 868610 mm |
| Installation | Standard 86 wall‑mount box, mounting hole distance:60mm |
| Color Option | Black / White |
| Net Weight | 180g‑280g(vary for different versions) |
| Mechanical Life | 100,000 times |
| Electrical Life | 500,000 times |
| Operating Ambient Temperature | 0‑45℃ |
| Protection Grade | IP20 |
| Warranty | 2 Years |
Product Selection:
| Model | Control Method | Switching Method |
| SDM9 Black (16A Electric Floor Heating + WiFi + 3-meter Sensor Cable) | Single-Switch Control | Touch Control + App Control + Voice Control |
| SDM9 Black (16A Electric Floor Heating + 3-meter Sensor Cable) | Electric Floor Heating | Touch Control |
| SDM9 Black (3A Hydronic Heating/Boiler + WiFi) | Hydronic Floor Heating / Wall-Mounted Boiler | Touch Control + App Control + Voice Control |
| SDM9 Black (3A Hydronic Heating/Boiler) | Hydronic Floor Heating / Wall-Mounted Boiler | Touch Control |
| SDM9 Black (25A Electric Floor Heating + WiFi + 3-meter Sensor Cable) | Hydronic Floor Heating / Wall-Mounted Boiler | Touch Control + App Control + Voice Control |
| SDM9 Black (25A Electric Floor Heating + 3-meter Sensor Cable) | Hydronic Floor Heating / Wall-Mounted Boiler | Touch Control |
Packaging:
| Model | Length (cm) | Width (cm) | Height (cm) | Volume (cm³) | Weight (g) |
| SDM9 Black (16A Electric Floor Heating + WiFi + 3-meter Sensor Cable) | 8.60 | 8.60 | 1.40 | 103.544 | 280 |
| SDM9 Black (16A Electric Floor Heating + 3-meter Sensor Cable) | 8.60 | 8.60 | 1.40 | 103.544 | 280 |
| SDM9 Black (3A Hydronic Heating/Boiler + WiFi) | 8.60 | 8.60 | 1.40 | 103.544 | 180 |
| SDM9 Black (3A Hydronic Heating/Boiler) | 8.60 | 8.60 | 1.40 | 103.544 | 180 |
| SDM9 Black (25A Electric Floor Heating + WiFi + 3-meter Sensor Cable) | 8.60 | 8.60 | 1.40 | 103.544 | 280 |
| SDM9 Black (25A Electric Floor Heating + 3-meter Sensor Cable) | 8.60 | 8.60 | 1.40 | 103.544 | 280 |
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