message: what is the pros and cons of rtd,over thermocouple
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Read the pages in links below, that ought to clarify your doubts. Last edited February 16, 2007
Comparison of Thermistors, Thermocouples and RTD's ... Unlike RTD's and thermistors thermocouples have plus and minus legs so polarity must be observed.
Thermocouple - No resistance lead wire problems, Fastest response; RTD - Most stable, accurate, Contamination resistant,; Thermistor - High output, fast, Point temperature sensing.
Since thermocouples measure wide temperature ranges and are relatively rugged, they are very often used industrial and process applications where accuracy may be a less important factor.
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