How important is indoor humidity to you? If you want, you can remove the humidity sensor from the indoor unit and transplant it to the outdoor unit. Place the indoor unit outside for a few days to make sure it gives the right readings before doing the swap.
I moved my indoor unit outside under the porch just so I can compare the two readings. It is usually within +- 2%. I have a 24 hour fan on my outside unit.
I moved my indoor unit outside under the porch just so I can compare the two readings. It is usually within +- 2%. I have a 24 hour fan on my outside unit.