A vs B: microprocessor issue?

Sensors Troubleshooting
1

I recently replaced a PA-II unit’s counter because of 0% correlation. I thought that would solve the issue, but nope, it’s still low, ~10%.

Any ideas?

Thanks

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2

Hi @jimvjo

If you are still experiencing this issue, send an email to contact@purpleair.com and we can help troubleshoot.