Hi. I have one of these fitted to a type 9 with but it doesn't seem to work with my old AST speedo.

https://www.carbuilder.com/uk/digital-speedo-signal-adapter-1

Is anyone else using this sensor? and what speedo do you have? I'm pretty sure I'll need a new speedo but i want to get one that works with this sensor if possible.

Thanks

Try ETB ask them if it will work with their speedos
https://www.etbinstruments.com/
01702 601055

I used ETB instruments for my Pinto engined MK Indy. I used their magnets glued to the diff input flange and fabricated a bracket to hold their sensor in place. They helped me sort the calibration over the phone as well. Awesome people to deal with.

Thank you both. Etb have confirmed that their speedo and vdo speedo should work with the cbs sensor.