There's a subtle error in the User Manual for the relatively new MissileWorks RRC2-mini altimeter. It's in the middle flowchart in Figure 5 on half-page 8, which is actually the left half of the PDF file's first page. The two diamond blocks say "Select PB", but the one to the right should actually say "Enter PB". I've verified with my RRC2-mini that "Enter PB" is the correct text. See attached pic.