{"id":4310,"date":"2023-09-16T21:44:00","date_gmt":"2023-09-16T13:44:00","guid":{"rendered":"https:\/\/www.sj-gauge.com\/?p=4310"},"modified":"2026-04-20T23:16:20","modified_gmt":"2026-04-20T15:16:20","slug":"temperature-sensor-thermocouple-rtd-selection","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/","title":{"rendered":"\u00bfQu\u00e9 es una sonda de temperatura? \u00bfCu\u00e1les son las diferencias de cableado entre los termopares y los RTD? \u00bfC\u00f3mo elegir entre los tipos K, N, S, E y J?"},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Es pr\u00e1ctica common referirse tanto a los termopares como a los detectores de temperatura por resistencia (RTD) como sensores de temperatura, pero en realidad son dos cosas diferentes. Esta p\u00e1gina trata principalmente de los tipos de cableado de los termopares, no de los RTD. Si esto ha causado alg\u00fan malentendido, le pedimos disculpas.<\/p>\n\n\n\n<p>Los termopares se utilizan mucho por su amplio rango de medici\u00f3n y su versatilidad. Y lo que es m\u00e1s importante, tienen un coste relativamente bajo (para los tipos que no contienen metales preciosos), lo que los convierte en uno de los instrumentos de medici\u00f3n de temperatura m\u00e1s populares. Hoy en d\u00eda, los termopares vienen en muchos tipos de cableado diferentes. Dado que cada tipo produce una se\u00f1al de salida diferente, es importante tener en cuenta qu\u00e9 tipo de termopar utiliza el equipo original durante la instalaci\u00f3n. A la hora de dise\u00f1ar un equipo, \u00bfc\u00f3mo se debe elegir el tipo adecuado? A continuaci\u00f3n se presenta un summario de varios tipos de cableado de termopares para su referencia.<\/p>\n<\/blockquote>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #7b1e1c;color:#7b1e1c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #7b1e1c;color:#7b1e1c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/#1-k-type-type-k-nickel-chromium-nickel-aluminum-alloy\" >1. Tipo K (Tipo K, aleaci\u00f3n de n\u00edquel-cromo \/ n\u00edquel-aluminio)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/#2-e-type-type-e-nickel-chromium-copper-nickel-alloy\" >2. Tipo E (Tipo E, aleaci\u00f3n de n\u00edquel-cromo \/ cobre-n\u00edquel)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/#3-j-type-type-j-iron-copper-nickel-alloy\" >3. Tipo J (Tipo J, aleaci\u00f3n de hierro \/ cobre-n\u00edquel)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/#4-n-type-type-n-nickel-chromium-silicon-nickel-silicon-alloy\" >4. Tipo N (Tipo N, aleaci\u00f3n de n\u00edquel-cromo-silicio\/n\u00edquel-silicio)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/#5-t-type-type-t-copper-copper-nickel-alloy\" >5. Tipo T (Tipo T, aleaci\u00f3n de cobre \/ cobre-n\u00edquel)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/#6-b-r-s-types-noble-metal-thermocouples-platinum-platinum-rhodium-alloys\" >6. Tipos B, R, S (termopares de metales nobles, aleaciones de platino\/platino-rodio)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/#7-thermocouple-output-signal-comparison-table\" >7. Tabla comparativa de se\u00f1ales de salida de termopar<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-9129565736698ec0fe7e02aba6dbcc5f\" id=\"h-1-k-type-type-k-nickel-chromium-nickel-aluminum-alloy\"><span class=\"ez-toc-section\" id=\"1-k-type-type-k-nickel-chromium-nickel-aluminum-alloy\"><\/span>1. Tipo K (Tipo K, aleaci\u00f3n de n\u00edquel-cromo \/ n\u00edquel-aluminio)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El tipo K es el tipo de termopar m\u00e1s utilizado debido a su bajo coste y amplio rango de medici\u00f3n (de -200\u00b0C a +1000\u00b0C). Tiene una sensibilidad de aproximadamente 41 \u03bcV\/\u00b0C, lo que facilita su detecci\u00f3n, y no supone una carga excesiva para el sistema a altas temperaturas. En general, a menos que existan requisitos especiales, el tipo K es la opci\u00f3n preferida.<br><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"617\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/01_SJ-Gauge_Thermocouple_K-type.jpg\" alt=\"\" class=\"wp-image-4311\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/01_SJ-Gauge_Thermocouple_K-type.jpg 1000w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/01_SJ-Gauge_Thermocouple_K-type-300x185.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/01_SJ-Gauge_Thermocouple_K-type-768x474.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/01_SJ-Gauge_Thermocouple_K-type-18x12.jpg 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/01_SJ-Gauge_Thermocouple_K-type-600x370.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-b81bfbd1f502fe23c13b82f107ec29e0\" id=\"h-2-e-type-type-e-nickel-chromium-copper-nickel-alloy\"><span class=\"ez-toc-section\" id=\"2-e-type-type-e-nickel-chromium-copper-nickel-alloy\"><\/span>2. Tipo E (Tipo E, aleaci\u00f3n de n\u00edquel-cromo \/ cobre-n\u00edquel)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El tipo E tiene una salida relativamente alta (68 \u03bcV\/\u00b0C), lo que lo hace adecuado para la medici\u00f3n a baja temperatura. Puede medir temperaturas cercanas al cero absoluto, y se suele utilizar en el rango de -200\u00b0C a 900\u00b0C. Adem\u00e1s, como ambos terminales son no magn\u00e9ticos, no se puede utilizar un im\u00e1n para distinguir los polos positivo y negativo.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"759\" height=\"634\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/02_SJ-Gauge_Thermocouple_E-type.jpg\" alt=\"\" class=\"wp-image-4312\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/02_SJ-Gauge_Thermocouple_E-type.jpg 759w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/02_SJ-Gauge_Thermocouple_E-type-300x251.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/02_SJ-Gauge_Thermocouple_E-type-14x12.jpg 14w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/02_SJ-Gauge_Thermocouple_E-type-600x501.jpg 600w\" sizes=\"(max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color\" id=\"h-3-j-type-type-j-iron-copper-nickel-alloy\"><span class=\"ez-toc-section\" id=\"3-j-type-type-j-iron-copper-nickel-alloy\"><\/span>3. Tipo J (Tipo J, aleaci\u00f3n de hierro \/ cobre-n\u00edquel)<br><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El tipo J es un tipo de termopar anterior y ahora se utiliza menos. Se encuentra principalmente en equipos antiguos que no pueden aceptar otras se\u00f1ales de termopar. Debido a su rango de medici\u00f3n limitado (-40 a +750\u00b0C), ha sido sustituido en gran medida por el tipo K. Su sensibilidad es de aproximadamente 52 \u03bcV\/\u00b0C. Su sensibilidad es de aproximadamente 52 \u03bcV\/\u00b0C. El Tipo J no debe utilizarse por encima de 760\u00b0C, ya que sus propiedades magn\u00e9ticas pueden cambiar repentinamente, provocando una p\u00e9rdida permanente de precisi\u00f3n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"767\" height=\"634\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/03_SJ-Gauge_Thermocouple_J-type.jpg\" alt=\"\" class=\"wp-image-4313\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/03_SJ-Gauge_Thermocouple_J-type.jpg 767w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/03_SJ-Gauge_Thermocouple_J-type-300x248.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/03_SJ-Gauge_Thermocouple_J-type-15x12.jpg 15w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/03_SJ-Gauge_Thermocouple_J-type-600x496.jpg 600w\" sizes=\"(max-width: 767px) 100vw, 767px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-77938e19c700ac394a3e3939fbe2dd26\" id=\"h-4-n-type-type-n-nickel-chromium-silicon-nickel-silicon-alloy\"><span class=\"ez-toc-section\" id=\"4-n-type-type-n-nickel-chromium-silicon-nickel-silicon-alloy\"><\/span>4. Tipo N (Tipo N, aleaci\u00f3n de n\u00edquel-cromo-silicio\/n\u00edquel-silicio)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El tipo N ofrece una gran estabilidad y una excelente resistencia a la oxidaci\u00f3n a altas temperaturas, por lo que es adecuado para aplicaciones de alta temperatura. Su sensibilidad es de aproximadamente 39 \u03bcV\/\u00b0C, y puede considerarse una versi\u00f3n mejorada del tipo K. Al igual que el Tipo K, no contiene metales preciosos, lo que ha contribuido a su creciente popularidad. El rango de medida va de -200\u00b0C a +1200\u00b0C.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"759\" height=\"634\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/04_SJ-Gauge_Thermocouple_N-type.jpg\" alt=\"\" class=\"wp-image-4314\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/04_SJ-Gauge_Thermocouple_N-type.jpg 759w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/04_SJ-Gauge_Thermocouple_N-type-300x251.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/04_SJ-Gauge_Thermocouple_N-type-14x12.jpg 14w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/04_SJ-Gauge_Thermocouple_N-type-600x501.jpg 600w\" sizes=\"(max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-838e17eabbb42756791dda242b77d561\" id=\"h-5-t-type-type-t-copper-copper-nickel-alloy\"><span class=\"ez-toc-section\" id=\"5-t-type-type-t-copper-copper-nickel-alloy\"><\/span>5. Tipo T (Tipo T, aleaci\u00f3n de cobre \/ cobre-n\u00edquel)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El tipo T es el m\u00e1s adecuado para la medici\u00f3n a baja temperatura, con una sensibilidad de aproximadamente 43 \u03bcV\/\u00b0C. Ofrece alta sensibilidad, respuesta de temperatura casi lineal, buena repetibilidad, excelente estabilidad a largo plazo y bajo coste. Sin embargo, la pata positiva de cobre tiene poca resistencia a la oxidaci\u00f3n a altas temperaturas, lo que limita su temperatura m\u00e1xima de funcionamiento. Una vez superados los 400\u00b0C, la pata positiva es propensa a oxidarse y da\u00f1arse. El rango de medida va de -250\u00b0C a +350\u00b0C.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"759\" height=\"634\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/05_SJ-Gauge_Thermocouple_T-type.jpg\" alt=\"\" class=\"wp-image-4315\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/05_SJ-Gauge_Thermocouple_T-type.jpg 759w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/05_SJ-Gauge_Thermocouple_T-type-300x251.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/05_SJ-Gauge_Thermocouple_T-type-14x12.jpg 14w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/05_SJ-Gauge_Thermocouple_T-type-600x501.jpg 600w\" sizes=\"(max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-ec5cb4dbcb17fb8ef21df14f35b5a72c\" id=\"h-6-b-r-s-types-noble-metal-thermocouples-platinum-platinum-rhodium-alloys\"><span class=\"ez-toc-section\" id=\"6-b-r-s-types-noble-metal-thermocouples-platinum-platinum-rhodium-alloys\"><\/span>6. Tipos B, R, S (termopares de metales nobles, aleaciones de platino\/platino-rodio)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Estos tres tipos son bastante similares y todos son adecuados para la medici\u00f3n a alta temperatura con una excelente estabilidad. Sin embargo, debido a su elevado coste, no se utilizan comm\u00fanicamente. El tipo S ofrece la mayor estabilidad, velocidad de respuesta y sensibilidad de los tres, y se utiliza a menudo como termopar de referencia para calibraci\u00f3n. Puede utilizarse de forma continua hasta 1300\u00b0C y hasta 1600\u00b0C durante periodos cortos. El Tipo B es relativamente m\u00e1s duradero, pero debido a sus caracter\u00edsticas de temperatura-tensi\u00f3n, se utiliza menos comm\u00fanicamente. El tipo R es similar al tipo S y puede utilizarse para medir temperaturas m\u00e1s elevadas. Sin embargo, es m\u00e1s caro y requiere protecci\u00f3n adicional, como tubos protectores, por lo que tampoco se utiliza comm\u00fanicamente.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"759\" height=\"634\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/06_SJ-Gauge_Thermocouple_BRS-type.jpg\" alt=\"\" class=\"wp-image-4316\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/06_SJ-Gauge_Thermocouple_BRS-type.jpg 759w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/06_SJ-Gauge_Thermocouple_BRS-type-300x251.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/06_SJ-Gauge_Thermocouple_BRS-type-14x12.jpg 14w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/06_SJ-Gauge_Thermocouple_BRS-type-600x501.jpg 600w\" sizes=\"(max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-60ae968fd36f8a93d0130e6f74ef7cd6\" id=\"h-7-thermocouple-output-signal-comparison-table\"><span class=\"ez-toc-section\" id=\"7-thermocouple-output-signal-comparison-table\"><\/span>7. Tabla comparativa de se\u00f1ales de salida de termopar<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Para ayudarle a comparar las diferencias en las se\u00f1ales de salida entre los distintos tipos de termopares, las hemos organizado en la tabla de la derecha.<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"615\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/07_SJ-Gauge_Thermocouple_all-type.jpg\" alt=\"\" class=\"wp-image-4317\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/07_SJ-Gauge_Thermocouple_all-type.jpg 1000w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/07_SJ-Gauge_Thermocouple_all-type-300x185.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/07_SJ-Gauge_Thermocouple_all-type-768x472.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/07_SJ-Gauge_Thermocouple_all-type-18x12.jpg 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/07_SJ-Gauge_Thermocouple_all-type-600x369.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>It is common practice to refer to both thermocouples and resistance temperature detectors (RTDs) as temperature sensors, but in fact they are two different things. This page mainly discusses thermocouple wiring types, not RTDs. If this causes any misunderstanding, we apologize. Thermocouples are widely used because of their broad measurement range and versatility. More importantly, [&hellip;]<\/p>","protected":false},"author":2,"featured_media":4318,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[72],"class_list":["post-4310","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-temperature"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>What Is a Temperature Probe? Thermocouple vs RTD &amp; Types K, N, S, E, J Explained\uff5cSJ Gauge<\/title>\n<meta name=\"description\" content=\"A temperature probe includes thermocouples and RTDs, but they differ in wiring, accuracy, and applications. Learn the key differences and how to choose thermocouple types K, N, S, E, and J for your system.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is a temperature probe? What are the differences in wiring between thermocouples and RTDs? How should you choose among K, N, S, E, and J types?\" \/>\n<meta property=\"og:description\" content=\"A temperature probe includes thermocouples and RTDs, but they differ in wiring, accuracy, and applications. Learn the key differences and how to choose thermocouple types K, N, S, E, and J for your system.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/\" \/>\n<meta property=\"og:site_name\" content=\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-16T13:44:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-20T15:16:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/3-03_BN.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"SJ Gauge\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"SJ Gauge\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/\"},\"author\":{\"name\":\"SJ Gauge\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#\\\/schema\\\/person\\\/cbc9e642e49a53b18b3eb832486bd52c\"},\"headline\":\"What is a temperature probe? What are the differences in wiring between thermocouples and RTDs? How should you choose among K, N, S, E, and J types?\",\"datePublished\":\"2023-09-16T13:44:00+00:00\",\"dateModified\":\"2026-04-20T15:16:20+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/\"},\"wordCount\":668,\"publisher\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/3-03_BN.jpg\",\"keywords\":[\"Temperature\"],\"articleSection\":[\"Knowledge\"],\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/\",\"name\":\"What Is a Temperature Probe? Thermocouple vs RTD & Types K, N, S, E, J Explained\uff5cSJ Gauge\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/3-03_BN.jpg\",\"datePublished\":\"2023-09-16T13:44:00+00:00\",\"dateModified\":\"2026-04-20T15:16:20+00:00\",\"description\":\"A temperature probe includes thermocouples and RTDs, but they differ in wiring, accuracy, and applications. Learn the key differences and how to choose thermocouple types K, N, S, E, and J for your system.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/3-03_BN.jpg\",\"contentUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/3-03_BN.jpg\",\"width\":800,\"height\":500},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/temperature-sensor-thermocouple-rtd-selection\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.sj-gauge.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is a temperature probe? What are the differences in wiring between thermocouples and RTDs? How should you choose among K, N, S, E, and J types?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#website\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/\",\"name\":\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\",\"description\":\"Manufacturer of industrial pressure gauges, pressure sensors, and transmitters. SJ Gauge provides high accuracy, durable materials, and custom solutions for oil &amp; gas, chemical, and industrial applications.\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.sj-gauge.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#organization\",\"name\":\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/logo.webp\",\"contentUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/logo.webp\",\"width\":348,\"height\":184,\"caption\":\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#\\\/schema\\\/person\\\/cbc9e642e49a53b18b3eb832486bd52c\",\"name\":\"SJ Gauge\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4e493d7a75385cd872b842b9ce5fd061df6540ad1ac291892ca82dcf5d1ea59b?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4e493d7a75385cd872b842b9ce5fd061df6540ad1ac291892ca82dcf5d1ea59b?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4e493d7a75385cd872b842b9ce5fd061df6540ad1ac291892ca82dcf5d1ea59b?s=96&d=mm&r=g\",\"caption\":\"SJ Gauge\"},\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/es\\\/author\\\/sj-gauge\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u00bfQu\u00e9 es una sonda de temperatura? Termopar frente a RTD y explicaci\u00f3n de los tipos K, N, S, E, J\uff5cSJ Gauge","description":"Una sonda de temperatura incluye termopares y RTD, pero difieren en el cableado, la precisi\u00f3n y las aplicaciones. Conozca las principales diferencias y c\u00f3mo elegir los tipos de termopar K, N, S, E y J para su sistema.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/","og_locale":"es_ES","og_type":"article","og_title":"What is a temperature probe? What are the differences in wiring between thermocouples and RTDs? How should you choose among K, N, S, E, and J types?","og_description":"A temperature probe includes thermocouples and RTDs, but they differ in wiring, accuracy, and applications. Learn the key differences and how to choose thermocouple types K, N, S, E, and J for your system.","og_url":"https:\/\/www.sj-gauge.com\/es\/temperature-sensor-thermocouple-rtd-selection\/","og_site_name":"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge","article_published_time":"2023-09-16T13:44:00+00:00","article_modified_time":"2026-04-20T15:16:20+00:00","og_image":[{"width":800,"height":500,"url":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/3-03_BN.jpg","type":"image\/jpeg"}],"author":"SJ Gauge","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"SJ Gauge","Tiempo de lectura":"4 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/#article","isPartOf":{"@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/"},"author":{"name":"SJ Gauge","@id":"https:\/\/www.sj-gauge.com\/#\/schema\/person\/cbc9e642e49a53b18b3eb832486bd52c"},"headline":"What is a temperature probe? What are the differences in wiring between thermocouples and RTDs? How should you choose among K, N, S, E, and J types?","datePublished":"2023-09-16T13:44:00+00:00","dateModified":"2026-04-20T15:16:20+00:00","mainEntityOfPage":{"@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/"},"wordCount":668,"publisher":{"@id":"https:\/\/www.sj-gauge.com\/#organization"},"image":{"@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/#primaryimage"},"thumbnailUrl":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/3-03_BN.jpg","keywords":["Temperature"],"articleSection":["Knowledge"],"inLanguage":"es"},{"@type":"WebPage","@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/","url":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/","name":"\u00bfQu\u00e9 es una sonda de temperatura? Termopar frente a RTD y explicaci\u00f3n de los tipos K, N, S, E, J\uff5cSJ Gauge","isPartOf":{"@id":"https:\/\/www.sj-gauge.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/#primaryimage"},"image":{"@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/#primaryimage"},"thumbnailUrl":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/3-03_BN.jpg","datePublished":"2023-09-16T13:44:00+00:00","dateModified":"2026-04-20T15:16:20+00:00","description":"Una sonda de temperatura incluye termopares y RTD, pero difieren en el cableado, la precisi\u00f3n y las aplicaciones. Conozca las principales diferencias y c\u00f3mo elegir los tipos de termopar K, N, S, E y J para su sistema.","breadcrumb":{"@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/#primaryimage","url":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/3-03_BN.jpg","contentUrl":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/04\/3-03_BN.jpg","width":800,"height":500},{"@type":"BreadcrumbList","@id":"https:\/\/www.sj-gauge.com\/temperature-sensor-thermocouple-rtd-selection\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.sj-gauge.com\/"},{"@type":"ListItem","position":2,"name":"What is a temperature probe? What are the differences in wiring between thermocouples and RTDs? How should you choose among K, N, S, E, and J types?"}]},{"@type":"WebSite","@id":"https:\/\/www.sj-gauge.com\/#website","url":"https:\/\/www.sj-gauge.com\/","name":"Su experto en Transmisores de presi\u00f3n, temperatura e inteligentes - SJ Gauge","description":"Fabricante de man\u00f3metros industriales, sensores de presi\u00f3n y transmisores. SJ Gauge ofrece alta precisi\u00f3n, materiales duraderos y soluciones personalizadas para aplicaciones de petr\u00f3leo y gas, qu\u00edmicas e industriales.","publisher":{"@id":"https:\/\/www.sj-gauge.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sj-gauge.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/www.sj-gauge.com\/#organization","name":"Su experto en Transmisores de presi\u00f3n, temperatura e inteligentes - SJ Gauge","url":"https:\/\/www.sj-gauge.com\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.sj-gauge.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/09\/logo.webp","contentUrl":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/09\/logo.webp","width":348,"height":184,"caption":"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge"},"image":{"@id":"https:\/\/www.sj-gauge.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.sj-gauge.com\/#\/schema\/person\/cbc9e642e49a53b18b3eb832486bd52c","name":"SJ Gauge","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/secure.gravatar.com\/avatar\/4e493d7a75385cd872b842b9ce5fd061df6540ad1ac291892ca82dcf5d1ea59b?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4e493d7a75385cd872b842b9ce5fd061df6540ad1ac291892ca82dcf5d1ea59b?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4e493d7a75385cd872b842b9ce5fd061df6540ad1ac291892ca82dcf5d1ea59b?s=96&d=mm&r=g","caption":"SJ Gauge"},"url":"https:\/\/www.sj-gauge.com\/es\/author\/sj-gauge\/"}]}},"_links":{"self":[{"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/posts\/4310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/comments?post=4310"}],"version-history":[{"count":2,"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/posts\/4310\/revisions"}],"predecessor-version":[{"id":4321,"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/posts\/4310\/revisions\/4321"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/media\/4318"}],"wp:attachment":[{"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/media?parent=4310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/categories?post=4310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sj-gauge.com\/es\/wp-json\/wp\/v2\/tags?post=4310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}