VOICE CONTROL, APP REMOTE CONTROL, SET WEEKLY, TEMPERATURE SCHEDULE, READABLE UI. KNOB CONTROL: Complete functions displayed on the knob and can be controlled by rotating the knob for your convenienceTEMPERATURE CALIBRATION: In case of the temperature variation between the floor and the air, you can set the calibration value by App, to make sure the final temperature reaches your Perfect valuePROTECT FROM HIGH TEMPERATURE: Automatically stop heating to keep you safe from danger may triggered by high temperature ADAPTABILITY TO HIDDEN BOX: The compact size makes it easy to install in the different sizes of hidden box such as 86mm square cassettes and 60mm european round cassettesSHARE DEVICE: Device share to your family members to control the samrt thermostat together. WIRING DIAGRAM: Check your thermostat version is GA/GB/ and choose the correct wiring TECHNICAL SPECIFICATIONS:Heating Type: GA water heatingPower Supply:95 ~240 , 50~60Hz or 24V DC/AC, 50~60HzCurrent Load: 5A (water heating)Set Temp. Range: 5-45CRoom Temp. Range: 5-99CDisplay Temp. Range: 5 ~ 99CAmbient Temp.: 0~ 45CAmbient Humidity: 5 ~ 95 % RH (Non Condensing)Storage Temp.: 0~ 45CWire Terminals: Wire 2 x 1.5SQMM or 1 x 2.5SQMMProtection Class: IP20Buttons: Knobsize: 86 x 86 x 51.5mmMaterial: PC+ABScolour: blackPackage Contents:1 x Smart knob thermostatOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.