@livius -- thanks so much code i used is below from pycoproc import Pycoproc expansion_identififer = Pycoproc() expansion_identififer.read_product_id() looks like: Pysense product_id = 61458 Pytrack product_id = 61459 I also inserted the Pysense example code after and it runs with no issues which is what I wanted. Andrei