The first device, the lamination of the remote control was in poor condition, the unit did not have scratches on the bottom, the display a loose connection and the unit-heated. This equipment has been replaced. When replacing the remote control device, the lamination is again damaged. After 23 hours 59 minutes and 59 seconds, the device switches no matter in what operating off automatically. The display for selecting the desired temperature would be able to save in this device - Works anyway, the actual value is subject to strong fluctuations. Have the unit returned and now expect a refund.