SDP31 Board Materials

What materials are used to create the SDP31 Differential Pressure sensor boards? I haven’t been able to find this info on the data sheets. I primarily interested in the metals/alloys used as I’m creating a device to be used within a magnetic field.

Thanks :smiley:

Standard FR4 stuff…we have an older guide https://learn.sparkfun.com/tutorials/pcb-basics that covers our basic processes