A lot of stainless I guess has a very low conductivity rating compared to direct contact or brass/tinned stuff.
Its Called AMPACITY
is a portmanteau for ampere capacity defined
by National Electrical Safety Codes, in some North American countries. Ampacity
as the maximum amount of electric current a conductor or device can carry before sustaining immediate or progressive deterioration.
Ampacity - Wikipedia, the free encyclopedia
Many boat hassles can be found with a digital thermometer .