This is a Smart Opentherm thermostat for boiler or thermal actuator heating control system in each single room. Build-in sensors in your  wireless room thermostat detects when the temperature falls to a chosen level and then feedback to the heating system to turn on.  Item No.: WT-25 Programmability: 7days programmable Mode: Manual Mode, Away Mode, PRG Mode  Color:  Black or White  Backlight: White Material:  ABS+PC Packing : Netural White Box, OEM acceptable Other function: Child lock, Open window detection, Frost protection, Temp. calibration  Optional: Opentherm protocol, WiFi optional, Zigbee optional Cetificate: CE, ROHS, UKCA, REACH, RED

This led display smart zigbee or wifi internet heating thermostat is a  and user-friendly device designed to control both water-based ( gas boiler, water thermal actuator or heat pump) and electric underfloor heating systems ( heating film, heating panel). Featuring a sleek and responsive touchscreen interface, this smart touch screen thermostat offers effortless temperature adjustments and remote control capabilities.        Attractive LED Display      Multiple modes control(Manual,Economy and PRG. Mode)      Water underfloor heating or cooling system(3A) or Electric underfloor heating system       7 days Programmable (4periods/day)      Child Lock       Open Window Detection      Frost protection      CE, ROHS approved      2.4Ghz Tuya Smart Life APP       External sensor supported