HT-66 is a new weekly programmable PWM room thermostat lunched in 2023, designed to underfloor heating system as Conventional and condensing boilers or Air and Ground source heat pumps. Depends on use case, can have different configuration. It allows you to control and automate your home’s heating system remotely using a mobile app. It works by sensing the air temperature, take heating mode for example, switching on the heating when the air temperature falls below the thermostat setting, and switching it off once this set temperature has been reached.       Environmental ABS material      LCD Display      Multiple modes control(Manual,Economy and PRG. Mode)       Electric heating system (16A)      Water heating system (3A)      7 days Programmable (4periods/day)      Clock display      86*86*16mm dimension      Frost Guard      CE, ROHS approved      2.4GHz Tuya WIFI      Floor sensor supported