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No manufacturer mark on ic as its seen in the picture.
DMM does not turn on and no display, everything seems normal and ok, all components seem ok,
I could not check any volts in IC pins !
datasheets' nominal values are stated in different temperature, at 23ºC and 25ºC,
as you know, relative humidity depends on the temperature, and we should consider accuracy and tolerance for each...
it seems that the difference is more than the expected values!
how do you calculate relative...
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