Why do two barometric pressure sensors have different values when measured at the same point ?

[vivekpkd]

Hi , recentlly i have purchased bmp390 sensor ,

When i am testing BMP390 with Arduino i found that the  two sensor have different pressure value , in case of Altitude, sensors reads 100 and 103 meters .

what is the reason behind it , 

[BSTRobin]

Hello vivekpkd,

For BMP390, typical absolute accuracy is ± 50 Pa. it is under the spec.