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About this item
• Supply: AC100- 240V
• Load Current: 16A
• Sensor: External Floor Sensor And Internal Air Sensor
• Connection: Wired
• Programmable: Weekly Programmable
• Wi-Fi enabled, supports remote app & voice control
• App Control: Tuya / Smart Life
• Voice Control: GoogleHome / Amazon Alexa / Yandex Alice
• Mounting Type: Flush Mounting
• Color: White
• Dimensions: 86x86x14 mm
Technical Data
Model Spec
Product Display
TS4W Wifi Alexa Underfloor Heating Thermostat is suitable for room temperature control. It controls the operating state of the floor heating equipment by comparing the ambient temperature with the set temperature, which improves comfort and achieves energy saving. This underfloor heating thermostat is equipped with touch buttons, which is elegant in design and easy to use. The thermostat has manual automatic, programmable and state memory functions.
This TS4W is the most popular product at present. Users can remotely monitor and control the indoor temperature through mobile phone apps or the Internet, adjust the temperature anytime and anywhere, and improve the convenience and flexibility of use. So it suitable for various places, such as homes, offices, commercial places, etc., with flexibility and versatility.






App Control
TS4 series WiFi Thermostat works with Tuya app and Smart Life app, you can control it via phone anywhere and anytime.

Temperature Hysteresis
This refers to the temperature value of the thermostat turning on and stopping heating. For example, the current setting temperature is 25 ℃, and the starting temperature difference is set to 0.5 ℃. Then, when the room temperature is below 24.5 ℃, the heating is turned on, and the heating is stopped when it reaches 25.5 ℃.

Weekly Programmable
The weekly programming function can set the temperature at different times.
1. Q: Can I install this thermostat by myself? Do I need to hire an electrician?
A: Regarding the installation of the thermostat, we first recommend that you operate in strict accordance with the steps in the product manual under the guidance of professionals to ensure standardized installation and stable subsequent operation of the device. If you choose to install it yourself, you must carefully read the manual in advance, fully master the installation process, wiring requirements and safety precautions before starting the operation, so as to avoid affecting the device's function or causing potential safety hazards due to improper operation.
2. Q: Why is the thermostat not turning on the heating?
A: First, check if the power supply is connected properly. Then, see if the set temperature is higher than the current room temperature (since the heating turns on when the room temp is lower than the set temp). Also, check if the thermostat is in the correct mode (heating mode).
3. Q: Can the thermostat be used with any electric heating system?
A: No. Different thermostats are compatible with different systems. For example, some are for electric floor heating, while others may be for other types. Make sure the thermostat matches your specific electric heating system (like heating cables, films, or mats for electric floor heating).
4. Q: How long is the product warranty period?
A: Our products come with a 2-year free warranty. If there is a quality issue (such as failure to turn on or unresponsive buttons) after you receive the goods, you can contact the after-sales customer service and provide the order number and photos of the problem. We will arrange for a replacement or repair.
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