1Powerful Functions: Weekly programmable, mobile app remote control panel, timing voice switch. 2Open Window Detection: Manually support the operating temperature of the window function in the advanced options. 3Built In 10K Sensor: Can check the temperature of the external sensor and has power off memory. 4Simple Convenient Operation: Voice control, free hands through simple voice commands. 5Features: Precise temperature control, temperature range 0.5C, more comfortable and at ease when using. Item Type: Smart Thermostat Product Size: Approx. 86 x 86mm / 3.4 x 3.4in Weight: 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 5~35C Accuracy 0.5C Corresponding Specifications Connect Plumbing Wall Hung Boiler Underfloor Heating1 x SmartThermostat2 x Screw Accessories1 x English User Manual1 xConnection Line