Tyre pressure monitoring system

[peter altas]

Yep, those I have. Only ones that don't seem to be easy to use and not locked away/damaged

I've seen little valves with green lines on them, and the green line disappeares when the pressure drops, or something to that effect.

I thought you were referring to something similar.

Never mind. I should just get myself a little air compressor
Peter Altas
BUSA-1