TUYA WiFi RF 6 in 1 Wireless Room Thermostat For Gas Boiler/Water/Ground Heating Remote Control Temperature Controller
Amazon.com: PNI Smart Thermostat CT400 Wireless, with WiFi, 2 Zone Control via Internet, for Central Heating, Pumps, Solenoid valves, APP TuyaSmart, Hysteresis 0.2 Degrees C, White, : Home & Kitchen
Tuya smart wifi Best programmable thermostat| Alibaba.com