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 convenience TEMPERATURE 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 value PROTECT 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 cassettes SHARE 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 heating Power Supply:95 ~240 , 50~60Hz or 24V DC/AC, 50~60Hz Current Load: 5A (water heating) Set Temp. Range: 5-45C Room Temp. Range: 5-99C Display Temp. Range: 5 ~ 99C Ambient Temp.: 0~ 45C Ambient Humidity: 5 ~ 95 % RH (Non Condensing) Storage Temp.: 0~ 45C Wire Terminals: Wire 2 x 1.5SQMM or 1 x 2.5SQMM Protection Class: IP20 Buttons: Knob size: 86 x 86 x 51.5mm Material: PC+ABS colour: black Package Contents: 1 x Smart knob thermostat Only 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.