This has probably been covered before. So appy polly logies in advance!

I would like to take my Micrologger cw/sd card abroad. I intend to take
all the leafletry it came with. I understand it has to have batteries in,
and be switched on.

I am flying with NO CHECK IN . So it has to be hand luggage. My main
concern is having it confiscated. It has a barograph. Am I OK taking this
to New Zealand?