Testing 6 dial clocks

I have tried 2 sets of gte/sr clocks and neither of them show any oil pressure. Is there any way to test the dash? I have fitted a new (aftermarket) oil pressure sensor, is there any way to test this also?
Thanks

Pretety sure you can measure resistance on the sensor to test it.

And in theory spoof the input into the clocks if you have the right equipment

I've got a multi meter

So should be able to test sensor resistance

No idea how to test the gauge, probably not with a multimeter, you need to mimic the sensor output with a fancy gizmo.

Thanks Iain I'll dig out my Haynes and have a look