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Are the two readings in the same place? What are the specific instruments being used? In regular automotive applications, thermistors are used. 4 wire RTDs are more accurate in the temperature range. Thermistors are "good enough" for most things, are cheaper and only require 2 wires.
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James
The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994)
Red-beard for President, 2020
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