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Compare RTD and thermistor on the basis of temperature coefficient , linearity, temperature range and cost.

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Parameters
RTD
Thermistors
Temperature coefficient 
It has positive temperature Coefficient (PTC) of Resistance.
It has both positive and negative temperature Coefficient (PTC and NTC) of Resistance.
linearity
It is Linear
It is non Linear 
Temperature range
-270oC to 2800oC
-150oC to 300oC
Cost
High cost
Low cost

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