BTHR918N Pressure Mod (WMR928N)

Hi,

Anyone with electronics knowledge ever tried to improve the accuracy of the barometer sensor inside the BTHR918N? Apparently, it can be done but I have incomplete instructions from which it is difficult to determine the changes necessary. I worked out how to adjust the relative humidity following the failure of the original sensor, which I replaced with a similar component. All that was additionally required was a change of resistor, which does not appear to have affected the linearity of readings at different RH. Judging by several posts I found via the search facility, the accuracy of the atmospheric pressure reading seems to be at least slightly off in most cases.

T