1.240*240 pixels, 1.32-inch round TFT screen, giving you a different artistic experience. 2. Ultra-delicate aluminum buttons, flexible rotation, giving you a silky experience. 3. 6H or above tempered glass, the screen is not easy to leave scratches. 4. In the main interface, the color atmosphere aperture can be changed at will. When adjusting the function area, the color of the fantasy atmosphere aperture changes synchronously with the color of the function area. 5. suitable for different home styles. Technical data 1. Power supply: 95 ~ 240 VAC, 50 ~ 60Hz 2. Current load: 3A (water heating, gas boiler)/maximum 16A (electric heating)/3A (water heating) 3. Sensor NTC3950, 10K 4. Accuracy: ±1°C 5. Set temperature Range: 5-35°C 5-35°C 6. Room temperature Range: 5-99°C 5-99°C 7. Display Temp. Display temperature range 5 ~ 99°C 8. Ambient temperature: 0 ~ 45°C 9. Ambient humidity: 5 ~ 95 % RH (non-condensing) 10. Storage temperature: -10 ~ 45°C 11. Power consumption Less than 1.5W 12. Timing error Less than 1% 13. Housing material PC+ABS (fireproof) 14. Installation box 86X86 mm square or 60 mm European round mounting box 15. Wire terminal Wire: 2 x 1.5 mm or 1 x 2.5 mm 16. Protection level: lP20 17. Button: Knob Colour:Black Specification: GB: Electric Heating/GA: water heating/GC: Water Heating + Wall-Mounted Boiler<br><br>Package Contents: 1 x Smart Knob Thermostat set 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.