I found this:
https://store.danfoss.com/en/Climate...5/p/060-001066
It would be perfect, too bad that the manufactor didnt include R290 or any other A3 gasses in the list of allowed refrigerants.
If you guys know of any alternative, I would be very thankful.

On a side note, I would be interested in understanding what are the circustances that could cause an abnormally high head pressure. I could think of clogged condenser fins, so it overheats and the pressure increases, or maybe clogged capillary so the refrigerant flow is restricted, right? But in these events, woudn't the power consumption of the compressor increase aswell? So what if I closely monitor the power consumption of the compressor while still having the low and high site manifolds attached so I can chart the power consumption and have a controller to halt the compressor if it works too hard? Ideally it would be better if I found a correct pressure control to install, but in case I cant find any?