Hi @Siddharth-Velappan The warmup time of the MH Z19b is 3 minutes. So 2 is probably fine, but you could probably do 3 just in case. Although 2 would save your more battery time. Do you mind explaining your setup a bit more? I would love to do something similar but I do not know where to get started with the PIC microcontroller!

@anticimex You are too fast Now the CERN files are uploaded!!

id also second the use of 18650s

@user2684 Thanks a lot

@doug Can't wait for you to release the BOM