1、Powerful Functions: Weekly programmable, mobile app remote control panel, timing voice switch. 2、Open Window Detection: Manually support the operating temperature of the window function in the advanced options. 3、Built In 10K Sensor: Can check the temperature of the external sensor and has power off memory. 4、Simple Convenient Operation: Voice control, free hands through simple voice commands. 5、Features: Precise temperature control, temperature range ±0.5°C, more comfortable and at ease when using. 1 x Smart Thermostat 2 x Screw Accessories1 x English User Manual Item Type: Smart ThermostatProduct Size: Approx. 86 x 86mm / 3.4 x 3.4inWeight: Approx. 160g / 5.6oz                   Specifications                  3A Connection Plumbing Wall Hung Boiler White         16A Electric Heater White                       Voltage                                        AC230V 50/60Hz              AC90-240V 50/60Hz                    Load Current                                                  3A                         16A                 Set Point Range                                                5~35°C                       Accuracy                                                 ± 0.5°C          Corresponding Specifications                              Connect Plumbing Wall Hung Boiler                 Underfloor Heating