tach and hobbs running backward

[Roger Hirschbein]

Hey guys,
My wife came back from a flight tonight and informed me that our hobbs meter and tach are now running in reverse. What gives? Really cool if I were going to sell the plane but--------. Please advise
Thanks

[Rob Hickman]

I don't think we have ever seen this.

What model system do you have?

What is the S/N?

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