What is the relative humidity in your place

OK, I thought they had about 3% possible variability.

Air is 0.00, sure Any cheap product from china may vary.
I had DI water reading 4ppm, i was angry then found it came from coconut carbon post filter haha potassium run off … i lived with that until it ran back to 0.00

Water is now a little off topic so i will stop…