1. ETOP WT-20 wireless wifi thermostat for gas boiler Feactures: • WIFI, ALEXA, GOOGLE ASSISTANT SUPPORT • Large lcd display,mirror black • Sender: 2*AAA batter supply • Receiver: 10A voltage-free output Boiler control system • 5+1+1 days programming with four periods setting 2.ETOP smart radiator thermostat TRV Feactures: • WIFI, ALEXA, GOOGLE ASSISTANT SUPPORT • ZIGBEE, RF, bluetooth protocol • Compact white outlook and easy installation • 7 days program(4 periods/day) • PID precising control • M30 x 1.5 Universal Type Head to body connection 3. ETOP FT-09 modbus RS485 thermostat for fan coil units Feactures: • Touch screen • 2 Pipes or 4 Pipes • Cool,Heat, Fan Mode • 3 Fan Speeds Select & Auto Fan • 0-10v for valve control/ fan speed control • Clock, Keycard, External Sensor (Optional) • Modbus, Bacnet(Optional) • WIFI, ALEXA, GOOGLE ASSISTANT SUPPORT(Optional)  

Wireless thermostat is widely used in conventional house without underfloor heating system. Such wireless thermostat is normally combined with water radiators. But weather your wireless thermostat work with your boiler, it depends on your boiler type and thermostat types. If you boiler is dry-contact with on/off signal control, you can find wireless thermostat with voltage-free output.  90% wireless thermostat on the market is such on/off control.  But if you use opentherm boiler, you better to check wireless thermostat with opentherm communication output. E-Top as professional thermostat manufacturer, we have both wireless thermostats for gas boiler controls.   For wireless thermostat to control dry-contact boilers, we have following types. * Non-programmable battery wireless thermostat   * Programmable battery wireless heating thermostat * Smart WiFi wireless thermostat   * See more information on etopcontrols For wireless thermostat to control opentherm boilers, we have one type below, it adapts 4.0 opentherm protocol. For more information, you can contact us from info@etopcontrols.com