pressure switch question

i have an adjustable pressure switch now that doesnt not have a window, its like 1 psi bc its adjustable shut off at what ever i set it at and turn on the second i lose like 1 psi, its kinda annoying.. does any body else have this??

Sounds like a PS that I once had from shAIM. I took it off the next day and tossed it into the trash and installed a square D and have been happy since.

english please.