Welcome and congratulations on your new-to-you Scamp
You're off to a great start with your question about tire pressures. The concern about proper tire pressures on ALL vehicles has prompted many of the vehicle manufactures to
offer an "optional system" to monitor changes in the number of rotations of the wheels/tires. Low air/Flat tire/SLOW WHEEL rotation: A Gentle signal lets you know. ; )
This system DOES NOT give you tire pressures but it does let you know when one of the tires
is not doing it's job. Not available for our trailers.............yet. Too much $$$
I apologize for wandering off on a tangent; the technology is exciting! It came as standard equipment on my '04 MINI Cooper.