I'm looking for a 0-140 oil pressure sender for a early Series 1 S30. I can be reached by email at duane@vintage-motorworks.com

Don't think you will find any NOS senders for your project.

After blaming a 0-90 sender for my low oil pressure for a long time, I finally hooked a mechanical gauge. After that, I had to admit an overhaul was in my future.

Check out:

 His sender will register 10 Bar but never could pin down standards for the gauge itself. I still suspect the 6 Bar sender works with our gauges and the y only changed the face plate to say 90.

If you are looking for an authentic sender for a restoration, I don't think you will find any. And there was a service bulletin to convert the 0-140 senders/gauges to a 0-90 senders/gauges once existing stocks were exhausted.