Stratospheric flight 30.km altitude -56

Hello we are a high school and we have a team that we going to make axpirament with a hight altitude balloon any one knows what if is PIXHAWk will work in that altitude ?

Have a look here: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20160011507.pdf

Chances are it works but not all components might have guarantees for the temperatures that you might encounter, so that’s something to check.