When it comes to measuring temperature in various applications, selecting the right sensor is critical for achieving precision, reliability, and efficiency. Among the most popular options are PT100 sensors, thermocouples (such as the Type K thermocouple), and NTC sensors. Each of these has unique characteristics that make it suitable for specific scenarios. This article explores the differences between these sensors, including their strengths and weaknesses, and provides insights into their practical use with keywords like high accuracy temperature sensor, Type K thermocouple for industrial use, how to calibrate PT100 sensor, and NTC temperature sensor datasheet. Understanding PT100 Sensors A PT100

Type K and Type J are base-metal thermocouple designations. Neither is universally better: selection depends on the required temperature range, atmosphere, probe construction, controller input, and applicable tolerance class. A thermocouple type’s standardized reference range describes its thermoelectric reference function; it does not guarantee that every assembled probe can operate across that whole range. Quick comparison: Type K vs. Type J Selection factor Type K Type J Thermoelements Nickel-chromium positive leg and nickel-aluminum negative leg Iron positive leg and copper-nickel negative leg NIST ITS-90 reference-function range −270 °C to 1372 °C −210 °C to 1200 °C Practical working range Confirm