Unfortunately, the panel was broken at start e.g. encoders were not soldered properly to PCB, switches lock down when pressed, selected digits had different brightness and as far as I remember VSPEED display didn't work at all. It looked like third quality product...
Shit happens, it's just an an electronics...but the problem started from not being able to get in touch with Poldragonet for support. After several weeks of silence I was asked to send it back and stuck with the same problem, again no response for weeks. I gave up, requested a refund and I successfuly received the money back.
My negative recommendation for Poldragonet is because of their horrible approach toward the customers e.g. massive challanges in getting response by email, unanswered phone calls or voice mails, and the most important: delays in delivery measured in months.
Another story is that the MCP panel I received was built on a very old FSBUS v2.2 electronics, not supported natively by ProSim737.
So, think twice before placing the order...