{"id":8212,"date":"2023-09-13T09:00:17","date_gmt":"2023-09-13T14:00:17","guid":{"rendered":"http:\/\/blog.wika.com\/us\/\/?p=1397"},"modified":"2026-07-08T12:29:38","modified_gmt":"2026-07-08T17:29:38","slug":"rtd-vs-thermocouple-when-to-use-each-product","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/us\/products\/temperature-products\/rtd-vs-thermocouple-when-to-use-each-product\/","title":{"rendered":"RTD vs. Thermocouple Temperature Sensors: When To Use Each"},"content":{"rendered":"

Temperature sensors are essential measuring instruments for ensuring the safety and efficiency of countless industrial processes. While RTDs and thermocouples both provide accuracy and reliability, each has pros and cons that make them better suited for particular applications.<\/strong><\/p>\n

Resistance thermometers (RTDs)<\/a> and thermocouples<\/a> are the two most common types of electronic temperature sensors<\/a>\u00a0used in industrial processes. The choice of which one to use depends on a variety of factors. First let\u2019s take a look at what RTDs and thermocouples are, and how they differ from one another.<\/p>\n\n

RTD<\/p><\/div>\n \n

How to Choose between RTD and Thermocouple<\/h2>\n

In some applications, it doesn\u2019t matter very much whether you use a resistance thermometer or a thermocouple. Other times, one type is definitely better than the other. In general, thermocouples are better for high-temperature and high-vibration processes, applications that require fast response times, and those with limited space. RTDs offer better accuracy, repeatability, and stability.<\/p>\n

 <\/p>\n

\u00a0<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

\u00a0<\/h2>\n<\/td>\n

\n

RTD<\/b><\/p>\n<\/td>\n

\n

Thermocouple<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

Operating temperature range<\/span><\/p>\n<\/td>\n

\n

\u2212321\u00b0F (\u2212196\u00b0C) to
\n1,112\u00b0F (600\u00b0C)<\/span><\/p>\n<\/td>\n

\n

\u2212328\u00b0F (\u2212200\u00b0C) to
\n4,200\u00b0F (2,320\u00b0C)<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Higher accuracy<\/span><\/p>\n<\/td>\n

\n

\u2713<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n<\/tr>\n
\n

Higher repeatability<\/span><\/p>\n<\/td>\n

\n

\u2713<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n<\/tr>\n
\n

Better performance in high-vibration environments<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n\n

\u2713<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Better reliability in high-pressure environments<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n\n

\u2713<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Higher cost<\/span><\/p>\n<\/td>\n

\n

\u2713<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n<\/tr>\n
\n

Faster response time<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n\n

\u2713<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Higher stability<\/span><\/p>\n<\/td>\n

\n

\u2713<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n<\/tr>\n
\n

Better linearity<\/span><\/p>\n<\/td>\n

\n

\u2713<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n<\/tr>\n
\n

Easier installation<\/span><\/p>\n<\/td>\n

\n

\u2713<\/span><\/p>\n<\/td>\n

\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ultimately, when choosing a temperature sensor, you need to consider the application\u2019s<\/span><\/p>\n