Edge Probe + tool length probe on same input

[Noplace]

Hi all, a simple problem to solve i reckon for u guys, got myself a cheap tool length probe and a decent digitizing / edge probe , both use the same input but one is normally open and other is normally closed, what can I do to allow usage of both without changing active high/low everytime i want to switch?

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[komatias]

Hi all, a simple problem to solve i reckon for u guys, got myself a cheap tool length probe and a decent digitizing / edge probe , both use the same input but one is normally open and other is normally closed, what can I do to allow usage of both without changing active high/low everytime i want to switch?

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Look up inverting logic circuits :D