V G wrote: > I am concerned that water from the air may condense on the PCBs and > cause problems (such as undesirably conducting electricity, and so > on). Should I be worried about this? Yes. > If so, what can I do about it? Put only the sensors in the chamber with the electronics in the normal room environment. That's what wires are for. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .