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P-mag and VM epi 800 rpm compatibility

I’m switching to P-mags ( chucking my old Lasar electronic ignition) and wondering if the 12 volt rpm output signal on the P-mags is compatible with my old Vision Microsystems epi 800 tach gauge , I’ve done a lot of searching and as far as I can tell it is either 5volt or 10 volt signal ( depending on the VM unit ? ( not sure if that’s correct ). So my question is can I just hook the p-mag rpm out to my VM tach input ? The pulse on both is set the same.
 
Not necessarily a direct answer to your question, but this might provide a clue. From the diagnostic test instructions for my VM EPI 800, which I received from VM many years ago:

Epi800rpm.jpeg

Dave
 
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