1、Auto restart function

2、Unlimited fan speed, low noise

3、Accurate and stable temperature control

4、Accurate and stable auto fan

5、5 working modes,Timer on/off

6、Sleep function

7、Double sensors

8、Prevent cold wind in heating mode

9、Defrost automatically

10、Pipe protection for higher temperature

11、Examine fault by itself

12、Updated reciever,good looking appearance,show intuitional