Smart Wi-Fi thermostat with 4.3" touchscreen, remote app control, Alexa and Google Assistant compatibility, and advanced features like weather compensation and energy tracking for SunTouch floor heating systems.
Brand: SunTouch
Availability: Sold in Store - Ships from Store or Factory (4 available in store). (More Info)
Shipping: Free to Continental US (More Info)
The SunTouch ConnectPlus is an advanced programmable Wi-Fi thermostat designed to deliver convenient and intelligent control of your SunTouch floor heating system. With a sleek modern design and an easy-to-use 4.3-inch touchscreen, this thermostat combines style and smart functionality — giving homeowners full control over comfort, efficiency, and energy use.
Stay connected from anywhere with the Watts Home App, offering remote access, energy monitoring, flexible scheduling, and real-time notifications. The ConnectPlus also integrates seamlessly with Amazon Alexa and Google Assistant for hands-free voice control. Advanced features like weather compensation, automatic clock setting, and warm weather shutdown ensure optimal performance and efficiency throughout the year.
Equipped with wireless 915 MHz technology, it connects easily to optional devices such as the SunStat Relay R4 and ConnectPlus Smart Sensor, expanding control options for large or complex heating zones.




| Operation Voltage | 120/240 VAC, 60 Hz, 3 watts | Maximum load | 15 A, resistive |
|---|---|---|---|
| Maximum power | 1800 W at 120 VAC 3600 W at 240 VAC |
Ambient conditions | 32°F to 86°F (0°C to 30°C) <90% RH non-condensing |
| GFCI | Class A (5 mA trip) | Floor Sensor | Thermistor, 10k NTC type, 300 V jacketed cable, 15' long |
SunStat ConnectPlus - Installation Instructions
SunStat ConnectPlus - Voice Controls
SunStat ConnectPlus - Specification Sheet
| SKU | ST 500900-SB |
|---|---|
| UPC | 840213007546 |
| Non-Returnable | No |
| Manufacturer | SunTouch |
| Manufacturer Part Number | 81020606 |
| Voltage | 120/240 |
| Dimensions (L x W x H) | 4.73" x 3.11" x 1.9" |