Specification: Power Supply:100 ~240 VAC, 50~60Hz Current: 16A(floor heating); 3A(Water /gas boiler heating) Setting Temp. Range:5-95℃ Hysteresis:0℃ App: Tuya Smart / Smart Life App Dimension: 86*86mm App Control: Connect the machine with the smartphone by way of wifi. You can handheld remote control it anytime, anywhere. Voice Control: Our instruments well suited with Amazon Alexa, Google Home and Yandex Alice. Weekly Programmable: Use the Smart Schedule operate to set the finest temperature for every time of day. Energy Saving: A smart thermostat can save much more on heating bills. Temperature hysteresis: ± 0 ℃ Icon Displays: TGW60B-WIFI-EP: is used for electric underfloor heating system, connection with Infrared heating cables, electric heating films, electrical heating mat and so on. TGW60B-WIFI-WP: is used for water floor heating system, connected with water pump or normally open and customarily closed actuators. TGW60B-WIFI-WPB: is used for fuel boiler heating system, connected to gas boilers. ("dry contact" is necessary) Note: Please want an appropriate product in step with the heating components of your home. If you have any questions, please click on "Contact Seller" and we can be happy to assist you. What's within the package? Product Shows: