1. This advanced device offers unparalleled convenience and control over your boiler's temperature, ensuring that your home is always at the perfect temperature. 2. With the option to power it with either batteries or Type C, this thermostat is incredibly versatile and easy to use. You'll never have to worry about running out of power, or dealing with complicated wiring. 3. Our wireless thermostat is specifically designed to control the heating of your boiler, so you can enjoy maximum efficiency and energy savings. With its intuitive interface and easy-to-read display, you can quickly adjust the temperature to your liking, without any hassle. 4. Whether you're at home or away, our wireless thermostat gives you complete control over your heating system. You can set schedules to make your life more comfortable. 5. Say goodbye to outdated and inefficient heating systems and upgrade to our wireless thermostat today. It's the ultimate solution for anyone looking to simplify their life and enjoy a more comfortable home. Attention:R9 NO-WIFI:Thermostat, don't support to work with phone app! It's a Wireless thermostat for gas boiler, package including the receiver. The gas boiler need to connect to the receiver! Support USB and Battery powered(Batteries are not including in the package). R9-WIFI: WIFI Thermostat can work with Tuya APP and Smart Life APP, Also support to work with for Google Home, vYandex Alice and for Amazon Alexa Self-Consumed Power: Less than 170uW Voltage: 3 x 1.5V Batteries (Not included batteries) or USB Type C Current Load: 3A Temperature Control Accuracy: ±1ºC Temperature Sensor: NTC Protection Grade:IP20 Temperature Range: 15-90 (℃) Size: 86X86(mm) Color: White Material: ABS Package Contents: 1 x Controller 1 x Receiver 1 x English instructi