Modern design similar as a cell phone. Beautiful Frame CHROME creates elegant life. Acrylic lenses to avoid the finger scrath. Touch Button makes simple operation. Large screen display with backlight is easy to readâ??even in the dark. Four periods program schedules maximize comfort and economy. One-touch temp control overrides program schedule at any time. Precise comfort control keeps temperature within 0.5°C of the level you set. Internal and external sensor selectable is suitable for any place.(optional) Data memory when power is off. (optional) Easy installation:86mm hidden box and european 60mm round box is available. Technical Data Sensor NTC Power Supply 110~240V, 50 ~60Hz Accuracy ±0.5â?? Current Load 3A for valve and 5A for fan Temp. Range 5 -35â?? Shell Material PC+ABS Fireproof) Power Consumption