Authentic combined differential pressure (PSI) and cabin altitude indicator, an essential piece in the environmental control systems of pressurized aircraft.
 
This instrument allows the pilot to monitor in real time two critical variables: the pressure difference between the inside and outside of the fuselage and the equivalent cabin altitude in hundreds of feet. Its dual scale, with precise markers and independent needles, reflects the meticulous engineering that characterizes commercial and executive aviation.
 
It retains its original condition without modification, showing genuine signs of use that certify its operational history. Ideal as a collector's piece, decorative object or conversation piece in themed spaces.
 
Condition:
 
 
 
 
Original, unrestored
 
 
 
 
Non-functional (for decorative use only)
 
 
 
 
With cosmetic wear characteristic of the cockpit
 
 
 
Approximate dimensions:
Front diameter: 8.5 cm
Depth: 17 cm
 
A real testimony to the precision that defines the experience of flying.