AST Thermocouples, RTDs, Thermistors and Custom Temperature Assemblies

Applied Sensor Technologies is a major manufacturer of thermocouple, RTD, thermistor and other types of temperature sensor assemblies. ISO9001:2000 certified and a leading practitioner of Lean Manufacturing methods, AST focuses on building high-quality, high-reliability products for the industrial market.

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Thermocouples generally can measure temperatures over wide temperature ranges, inexpensively, and are very rugged, but they are not as accurate or stable as RTD’s and Thermistors.

RTD’s are stable and have a fairly wide temperature range, but are not as rugged and inexpensive as thermocouples. Since they require the use of electric current to make measurements, RTD’s are subject to inaccuracies from self-heating.
Thermistors tend to be more accurate than RTD’s or thermocouples, but they have a much more limited temperature range.