On the top side, all the switches are positioned. Once to take a toggle switch to turn the unit completely from the mains and then three keys to the heater in addition to turn to select the output stage (1300 or 1800 watts) and normal or sensor operation.
Turn it runs the heater at the button of a few seconds after and so cools the heater.
The motion sensor works very well. It detects a person running the heater while it is detected by the sensor, but minimum two minutes.
On the front is a rotating wheel where I can see the direction of the warm air to distract a little.
On the back there is a slight foam filter that can be removed from the bottom for cleaning.
Only as a frost protection unit heater is not to be used, it does not have this feature.
For a device of this price range, I expect the thermostat is installed. Right now in spring, the device does not run at sensor contact.
I will assemble this heater with us to work in the toilet, here it is in winter cool but it can freeze anything.
Because there the operating time will be mostly short makes the lack of temperature control is not noticeable.
This is my first heater I see no thermostat. So it is actually useful to use only in sensor mode.
Although I do not need more heaters in April. I do not know what to make of it, before buying check necessarily whether it makes sense to use and I forgive even four stars.