hi again,
I did not have the time to test again
but maybe I think to know what probably could be the problem.
I have two emergency switches 1 left 1 right. Got them in serials (working fine).
But the cable that feed the left switch have four wires and need only two for the switch.
So I thought that I could use the other two wires to use for the probe.
Its an shielded cable outside but for sure there can be some noise from the emergency switch on the wires of the probe.
Am I looking to far or is this possible?
I also ordered new cable to wire these probe with separate cable.
Keep you informed.
Koen