Any calibration / offset support

[Strykar]

I bought two TEMPerX232 (V2.5) USB devices and they appear to work fine, but their temp difference is often off by 1.5 degrees between each other:

$ sudo ./temper.py
Bus 002 Dev 014 1a86:5523 TEMPerX232_V2.5 25.10C 77.18F 37% - - -
Bus 002 Dev 015 1a86:5523 TEMPerX232_V2.5 26.29C 79.32F 37% - - -

Is there a way to define an offset for one or both the cards so the readings are closer to reality?