This is The 3-D Compass Geomancy Compass.
There are four compass by your preference.(you push the menu button)
The camera function has been assimilated into the landscape.
So you can see the orientation.
The photo save function does not.
If you want to save please use the paid version.
Adjust this camera's screen in the center of your room.
You will fit this camera in the center of the room.
then you can check the orientation of the room.