Quite powerful and aesthetically pleasing despite the bulky impression given in the photos. First day of testing and everything seems fine. The meter works as it should.
So let's touch on the negatives, mainly regarding the installation or the construction aspect if you will.
There is no good provision for the cable routing to the connection terminal, neither at the front nor at the back, to have, for example, space at the back to place a small terminal. Note: I did not use 2.5mm cable but 1.5mm flexible.
I had to glue the cables with hot silicone to keep them securely in their channel. If there was just 1 millimeter cut across the width of the channel with a white tie-up, the issue would be resolved. Along the rest of the route to the wall, the cables are at risk of getting caught on the snap-on cover of the fan at any moment. The connection terminal is snap-on with a push, so forget about flexible cables. I had to use terminal connectors which strained the already fragile terminal. The fan blade is slightly off-center in relation to the axis, with a pronounced phenomenon of not rotating completely circularly. And it comes out with a simple pull. So if you don't push it to sit properly in place all the way down, it will start to hit the walls. By the way, I also lubricated the two bearings on the axis. All these issues troubled me enough that I was ready to return the product. I am on the second day of testing