{"data":{"slug":"temperature-measurement-rtd-thermocouple-selection","title":"Temperature Measurement: RTD and Thermocouple Selection","summary":"Temperature is the most commonly measured process variable in industrial automation, alongside pressure, level, and flow.","category":{"slug":"field-devices-instrumentation","name":"Field Devices & Instrumentation"},"url":"https://wiki.aspotomasyon.com/article/temperature-measurement-rtd-thermocouple-selection","markdown_url":"https://wiki.aspotomasyon.com/article/temperature-measurement-rtd-thermocouple-selection.md","api_url":"https://wiki.aspotomasyon.com/api/v1/articles/temperature-measurement-rtd-thermocouple-selection","published":"2026-07-21T14:45:28+00:00","modified":"2026-09-13T11:07:23+00:00","reading_minutes":4,"word_count":850,"image":"https://wiki.aspotomasyon.com/assets/social/temperature-measurement-rtd-thermocouple-selection-e4dce933b8c4.png","html":"<p>Temperature is the most commonly measured process variable in industrial automation, alongside pressure, level, and flow. Selecting the correct temperature sensor — and understanding its operating principle, accuracy class, and installation requirements — is essential for process control, quality assurance, and safety. The two dominant industrial temperature sensor technologies are <strong>Resistance Temperature Detectors (RTDs)</strong> and <strong>thermocouples (TCs)</strong>.</p><figure class=\"article-figure\"><img src=\"https://wiki.aspotomasyon.com/assets/diagrams/field-devices-instrumentation-context.svg\" width=\"1100\" height=\"460\" loading=\"lazy\" decoding=\"async\" alt=\"A measurement chain from the process to an application. Calibration, loop checks, and process validation answer different questions; retain evidence for each applicable check.\"><figcaption>A measurement chain from the process to an application. Calibration, loop checks, and process validation answer different questions; retain evidence for each applicable check. <a href=\"https://wiki.aspotomasyon.com/assets/diagrams/field-devices-instrumentation-context.svg\" target=\"_blank\" rel=\"noopener\">View full size</a></figcaption></figure>\n\n<h2 id=\"resistance-temperature-detectors-rtds\">Resistance Temperature Detectors (RTDs)</h2>\n\n<p>RTDs measure temperature by exploiting the predictable change in electrical resistance of a metal (typically platinum) as temperature changes. The relationship is defined by the Callendar–Van Dusen equation and is highly repeatable.</p>\n\n<h3 id=\"pt100-the-industrial-standard\">Pt100 — The Industrial Standard</h3>\n<p>The most common RTD is the <strong>Pt100</strong> — a platinum element with a resistance of 100 Ω at 0 °C. Per IEC 60751, the temperature coefficient (α) is 0.00385 Ω/(Ω·°C), giving a sensitivity of approximately 0.385 Ω/°C. Pt1000 sensors (1,000 Ω at 0 °C) offer higher sensitivity and are used in applications with long cable runs.</p>\n\n<h3 id=\"rtd-element-types\">RTD Element Types</h3>\n<table>\n    <thead>\n        <tr><th>Type</th><th>Temperature Range</th><th>Accuracy</th><th>Characteristics</th></tr>\n    </thead>\n    <tbody>\n        <tr><td><strong>Thin-film</strong></td><td>−50 to +500 °C (encapsulated to 600 °C)</td><td>Class A or B</td><td>Compact, cost-effective, good vibration resistance. Most common in industrial probes.</td></tr>\n        <tr><td><strong>Wire-wound</strong></td><td>−200 to +660 °C</td><td>Class A or B</td><td>Higher accuracy and stability over wide ranges. More fragile than thin-film.</td></tr>\n        <tr><td><strong>Coiled (strain-free)</strong></td><td>−200 to +850 °C</td><td>Class A</td><td>Best industrial stability. Wire expands freely, minimizing strain errors.</td></tr>\n        <tr><td><strong>SPRT (Standard)</strong></td><td>−200 to +500 °C</td><td>±0.03 °C</td><td>Laboratory reference grade. Defines ITS-90. Not for industrial use.</td></tr>\n    </tbody>\n</table>\n\n<h3 id=\"rtd-tolerance-classes-iec-60751\">RTD Tolerance Classes (IEC 60751)</h3>\n<table>\n    <thead>\n        <tr><th>Class</th><th>Tolerance Formula</th><th>At 0 °C</th><th>At 100 °C</th></tr>\n    </thead>\n    <tbody>\n        <tr><td><strong>AA</strong></td><td>±(0.1 + 0.0017|t|)</td><td>±0.10 °C</td><td>±0.27 °C</td></tr>\n        <tr><td><strong>A</strong></td><td>±(0.15 + 0.002|t|)</td><td>±0.15 °C</td><td>±0.35 °C</td></tr>\n        <tr><td><strong>B</strong></td><td>±(0.30 + 0.005|t|)</td><td>±0.30 °C</td><td>±0.80 °C</td></tr>\n        <tr><td><strong>C</strong></td><td>±(0.60 + 0.01|t|)</td><td>±0.60 °C</td><td>±1.60 °C</td></tr>\n    </tbody>\n</table>\n\n<h3 id=\"wiring-configurations\">Wiring Configurations</h3>\n<ul>\n    <li><strong>Two-wire</strong> — Simplest but includes lead wire resistance in measurement. Only suitable for non-critical applications.</li>\n    <li><strong>Three-wire</strong> — Industry standard. Uses a Wheatstone bridge to cancel lead resistance. Sufficient for most industrial applications.</li>\n    <li><strong>Four-wire</strong> — Highest accuracy. Separate current source and voltage measurement eliminates all lead resistance effects. Used for precision measurements.</li>\n</ul>\n\n<h2 id=\"thermocouples\">Thermocouples</h2>\n\n<p>Thermocouples measure temperature using the <strong>Seebeck effect</strong>: when two dissimilar metals are joined at two junctions and a temperature difference exists between the junctions, a voltage (thermoelectric EMF) is generated. Thermocouples are self-powered (no external excitation needed) and cover a much wider temperature range than RTDs.</p>\n\n<h3 id=\"common-thermocouple-types\">Common Thermocouple Types</h3>\n<table>\n    <thead>\n        <tr><th>Type</th><th>Positive Leg</th><th>Negative Leg</th><th>Range (°C)</th><th>Sensitivity</th><th>Atmosphere</th></tr>\n    </thead>\n    <tbody>\n        <tr><td><strong>Type K</strong></td><td>Chromel (Ni-Cr)</td><td>Alumel (Ni-Al)</td><td>−200 to +1,260</td><td>~41 µV/°C</td><td>Oxidizing, inert</td></tr>\n        <tr><td><strong>Type J</strong></td><td>Iron</td><td>Constantan (Cu-Ni)</td><td>−40 to +760</td><td>~55 µV/°C</td><td>Reducing, vacuum, inert</td></tr>\n        <tr><td><strong>Type T</strong></td><td>Copper</td><td>Constantan (Cu-Ni)</td><td>−200 to +370</td><td>~43 µV/°C</td><td>Oxidizing, reducing, vacuum</td></tr>\n        <tr><td><strong>Type E</strong></td><td>Chromel (Ni-Cr)</td><td>Constantan (Cu-Ni)</td><td>−200 to +870</td><td>~68 µV/°C</td><td>Oxidizing, inert</td></tr>\n        <tr><td><strong>Type N</strong></td><td>Nicrosil (Ni-Cr-Si)</td><td>Nisil (Ni-Si)</td><td>−200 to +1,260</td><td>~39 µV/°C</td><td>Oxidizing, inert (K alternative)</td></tr>\n        <tr><td><strong>Type S</strong></td><td>Pt-10%Rh</td><td>Pt</td><td>0 to +1,480</td><td>~10 µV/°C</td><td>Oxidizing, inert</td></tr>\n        <tr><td><strong>Type R</strong></td><td>Pt-13%Rh</td><td>Pt</td><td>0 to +1,480</td><td>~10 µV/°C</td><td>Oxidizing, inert</td></tr>\n        <tr><td><strong>Type B</strong></td><td>Pt-30%Rh</td><td>Pt-6%Rh</td><td>+200 to +1,700</td><td>~10 µV/°C</td><td>Oxidizing, inert</td></tr>\n    </tbody>\n</table>\n\n<h2 id=\"rtd-vs-thermocouple-selection-guide\">RTD vs. Thermocouple Selection Guide</h2>\n\n<table>\n    <thead>\n        <tr><th>Criterion</th><th>RTD (Pt100)</th><th>Thermocouple (Type K)</th></tr>\n    </thead>\n    <tbody>\n        <tr><td><strong>Temperature range</strong></td><td>−200 to +850 °C</td><td>−200 to +1,260 °C (K), up to 1,700 °C (B)</td></tr>\n        <tr><td><strong>Accuracy</strong></td><td>±0.1 to ±0.3 °C (Class A)</td><td>±1.1 to ±2.2 °C (Standard)</td></tr>\n        <tr><td><strong>Stability</strong></td><td>Excellent (low drift)</td><td>Moderate (drift over time)</td></tr>\n        <tr><td><strong>Response time</strong></td><td>Slower (1–10 s)</td><td>Faster (0.1–5 s)</td></tr>\n        <tr><td><strong>Signal level</strong></td><td>Resistance (Ω)</td><td>Voltage (µV)</td></tr>\n        <tr><td><strong>Cost</strong></td><td>Higher</td><td>Lower</td></tr>\n        <tr><td><strong>Cold junction</strong></td><td>Not required</td><td>Required (CJC compensation)</td></tr>\n        <tr><td><strong>Best for</strong></td><td>−200 to +500 °C, high accuracy</td><td>&gt;500 °C, fast response, cost-sensitive</td></tr>\n    </tbody>\n</table>\n\n<h2 id=\"installation-best-practices\">Installation Best Practices</h2>\n\n<ul>\n    <li><strong>Thermowell installation</strong> — Always install sensors in thermowells for process-isolated removal. Thermowells must be rated for process pressure, velocity (vibration), and corrosion.</li>\n    <li><strong>Insertion depth</strong> — Minimum insertion depth should be 10× the sensor diameter into the process for accurate measurement. Center of the pipe is ideal for pipes &gt; 300 mm diameter.</li>\n    <li><strong>Thermowell wake frequency</strong> — ASME PTC 19.3 TW calculates the maximum allowable insertion length based on process velocity to prevent thermowell failure from vortex-induced vibration.</li>\n    <li><strong>Cable routing</strong> — Route thermocouple and RTD extension cables away from power cables to avoid electromagnetic interference. Use shielded cable for RTDs in high-EMI environments.</li>\n    <li><strong>Transmitter location</strong> — Mount temperature transmitters close to the sensor to convert the low-level signal (Ω or µV) to 4–20 mA or digital (HART, Fieldbus) before long cable runs.</li>\n</ul>\n\n<blockquote><p>ASP OTOMASYON engineers select, configure, and commission temperature measurement systems for process industries across Turkey, ensuring accurate and reliable temperature control from sensor to control system.</p></blockquote><section class=\"engineering-check\"><h2 id=\"apply-this-to-your-project\">Apply this to your project</h2><ul><li>Confirm the instrument tag, range, engineering unit, process connection, and environmental suitability against approved documents.</li><li>Check the complete measurement chain, including sensor configuration, channel scaling, quality indication, and display units.</li><li>Record reference equipment, uncertainty where relevant, test points, deviations, and the final configuration.</li></ul><p><a href=\"https://wiki.aspotomasyon.com/guides\">Follow an ASP project guide</a> to connect the fundamentals with implementation and acceptance.</p></section><figure class=\"article-figure\"><img src=\"https://wiki.aspotomasyon.com/assets/diagrams/field-devices-instrumentation-review.svg\" width=\"1100\" height=\"460\" loading=\"lazy\" decoding=\"async\" alt=\"Engineering review sequence: Specify → Inspect → Compare → Record. Keep the recorded evidence with the accepted configuration.\"><figcaption>Engineering review sequence: Specify → Inspect → Compare → Record. Keep the recorded evidence with the accepted configuration. <a href=\"https://wiki.aspotomasyon.com/assets/diagrams/field-devices-instrumentation-review.svg\" target=\"_blank\" rel=\"noopener\">View full size</a></figcaption></figure><h2 id=\"primary-references-and-further-reading\">Primary references and further reading</h2><p>Use the original specifications and product documentation for implementation details. The examples in this guide are illustrative engineering scenarios, not published project results.</p><ul><li><a href=\"https://www.fieldcommgroup.org/technologies/hart\" rel=\"noopener noreferrer\" target=\"_blank\">FieldComm Group — HART technology</a></li><li><a href=\"https://www.nist.gov/calibrations/traceability\" rel=\"noopener noreferrer\" target=\"_blank\">NIST — Policy on metrological traceability</a></li></ul><!-- asp-editorial-202609 -->","markdown":"# Temperature Measurement: RTD and Thermocouple Selection\n\n> Temperature is the most commonly measured process variable in industrial automation, alongside pressure, level, and flow.\n\n- Canonical URL: https://wiki.aspotomasyon.com/article/temperature-measurement-rtd-thermocouple-selection\n- Publisher: ASP OTOMASYON A.Ş. (ASP OTOMASYON Wiki)\n- Category: Field Devices & Instrumentation\n- Published: 2026-07-21 · Updated: 2026-09-13\n- Reading time: 4 min · Language: English\n\nTemperature is the most commonly measured process variable in industrial automation, alongside pressure, level, and flow. Selecting the correct temperature sensor — and understanding its operating principle, accuracy class, and installation requirements — is essential for process control, quality assurance, and safety. The two dominant industrial temperature sensor technologies are **Resistance Temperature Detectors (RTDs)** and **thermocouples (TCs)**.\n\n![A measurement chain from the process to an application. Calibration, loop checks, and process validation answer different questions; retain evidence for each applicable check.](https://wiki.aspotomasyon.com/assets/diagrams/field-devices-instrumentation-context.svg)\n\n*A measurement chain from the process to an application. Calibration, loop checks, and process validation answer different questions; retain evidence for each applicable check.*\n\n## Resistance Temperature Detectors (RTDs)\n\nRTDs measure temperature by exploiting the predictable change in electrical resistance of a metal (typically platinum) as temperature changes. The relationship is defined by the Callendar–Van Dusen equation and is highly repeatable.\n\n### Pt100 — The Industrial Standard\n\nThe most common RTD is the **Pt100** — a platinum element with a resistance of 100 Ω at 0 °C. Per IEC 60751, the temperature coefficient (α) is 0.00385 Ω/(Ω·°C), giving a sensitivity of approximately 0.385 Ω/°C. Pt1000 sensors (1,000 Ω at 0 °C) offer higher sensitivity and are used in applications with long cable runs.\n\n### RTD Element Types\n\n| Type | Temperature Range | Accuracy | Characteristics |\n| --- | --- | --- | --- |\n| **Thin-film** | −50 to +500 °C (encapsulated to 600 °C) | Class A or B | Compact, cost-effective, good vibration resistance. Most common in industrial probes. |\n| **Wire-wound** | −200 to +660 °C | Class A or B | Higher accuracy and stability over wide ranges. More fragile than thin-film. |\n| **Coiled (strain-free)** | −200 to +850 °C | Class A | Best industrial stability. Wire expands freely, minimizing strain errors. |\n| **SPRT (Standard)** | −200 to +500 °C | ±0.03 °C | Laboratory reference grade. Defines ITS-90. Not for industrial use. |\n\n### RTD Tolerance Classes (IEC 60751)\n\n| Class | Tolerance Formula | At 0 °C | At 100 °C |\n| --- | --- | --- | --- |\n| **AA** | ±(0.1 + 0.0017\\|t\\|) | ±0.10 °C | ±0.27 °C |\n| **A** | ±(0.15 + 0.002\\|t\\|) | ±0.15 °C | ±0.35 °C |\n| **B** | ±(0.30 + 0.005\\|t\\|) | ±0.30 °C | ±0.80 °C |\n| **C** | ±(0.60 + 0.01\\|t\\|) | ±0.60 °C | ±1.60 °C |\n\n### Wiring Configurations\n\n- **Two-wire** — Simplest but includes lead wire resistance in measurement. Only suitable for non-critical applications.\n- **Three-wire** — Industry standard. Uses a Wheatstone bridge to cancel lead resistance. Sufficient for most industrial applications.\n- **Four-wire** — Highest accuracy. Separate current source and voltage measurement eliminates all lead resistance effects. Used for precision measurements.\n\n## Thermocouples\n\nThermocouples measure temperature using the **Seebeck effect**: when two dissimilar metals are joined at two junctions and a temperature difference exists between the junctions, a voltage (thermoelectric EMF) is generated. Thermocouples are self-powered (no external excitation needed) and cover a much wider temperature range than RTDs.\n\n### Common Thermocouple Types\n\n| Type | Positive Leg | Negative Leg | Range (°C) | Sensitivity | Atmosphere |\n| --- | --- | --- | --- | --- | --- |\n| **Type K** | Chromel (Ni-Cr) | Alumel (Ni-Al) | −200 to +1,260 | ~41 µV/°C | Oxidizing, inert |\n| **Type J** | Iron | Constantan (Cu-Ni) | −40 to +760 | ~55 µV/°C | Reducing, vacuum, inert |\n| **Type T** | Copper | Constantan (Cu-Ni) | −200 to +370 | ~43 µV/°C | Oxidizing, reducing, vacuum |\n| **Type E** | Chromel (Ni-Cr) | Constantan (Cu-Ni) | −200 to +870 | ~68 µV/°C | Oxidizing, inert |\n| **Type N** | Nicrosil (Ni-Cr-Si) | Nisil (Ni-Si) | −200 to +1,260 | ~39 µV/°C | Oxidizing, inert (K alternative) |\n| **Type S** | Pt-10%Rh | Pt | 0 to +1,480 | ~10 µV/°C | Oxidizing, inert |\n| **Type R** | Pt-13%Rh | Pt | 0 to +1,480 | ~10 µV/°C | Oxidizing, inert |\n| **Type B** | Pt-30%Rh | Pt-6%Rh | +200 to +1,700 | ~10 µV/°C | Oxidizing, inert |\n\n## RTD vs. Thermocouple Selection Guide\n\n| Criterion | RTD (Pt100) | Thermocouple (Type K) |\n| --- | --- | --- |\n| **Temperature range** | −200 to +850 °C | −200 to +1,260 °C (K), up to 1,700 °C (B) |\n| **Accuracy** | ±0.1 to ±0.3 °C (Class A) | ±1.1 to ±2.2 °C (Standard) |\n| **Stability** | Excellent (low drift) | Moderate (drift over time) |\n| **Response time** | Slower (1–10 s) | Faster (0.1–5 s) |\n| **Signal level** | Resistance (Ω) | Voltage (µV) |\n| **Cost** | Higher | Lower |\n| **Cold junction** | Not required | Required (CJC compensation) |\n| **Best for** | −200 to +500 °C, high accuracy | >500 °C, fast response, cost-sensitive |\n\n## Installation Best Practices\n\n- **Thermowell installation** — Always install sensors in thermowells for process-isolated removal. Thermowells must be rated for process pressure, velocity (vibration), and corrosion.\n- **Insertion depth** — Minimum insertion depth should be 10× the sensor diameter into the process for accurate measurement. Center of the pipe is ideal for pipes > 300 mm diameter.\n- **Thermowell wake frequency** — ASME PTC 19.3 TW calculates the maximum allowable insertion length based on process velocity to prevent thermowell failure from vortex-induced vibration.\n- **Cable routing** — Route thermocouple and RTD extension cables away from power cables to avoid electromagnetic interference. Use shielded cable for RTDs in high-EMI environments.\n- **Transmitter location** — Mount temperature transmitters close to the sensor to convert the low-level signal (Ω or µV) to 4–20 mA or digital (HART, Fieldbus) before long cable runs.\n\n> ASP OTOMASYON engineers select, configure, and commission temperature measurement systems for process industries across Turkey, ensuring accurate and reliable temperature control from sensor to control system.\n\n## Apply this to your project\n\n- Confirm the instrument tag, range, engineering unit, process connection, and environmental suitability against approved documents.\n- Check the complete measurement chain, including sensor configuration, channel scaling, quality indication, and display units.\n- Record reference equipment, uncertainty where relevant, test points, deviations, and the final configuration.\n\n[Follow an ASP project guide](https://wiki.aspotomasyon.com/guides) to connect the fundamentals with implementation and acceptance.\n\n![Engineering review sequence: Specify → Inspect → Compare → Record. Keep the recorded evidence with the accepted configuration.](https://wiki.aspotomasyon.com/assets/diagrams/field-devices-instrumentation-review.svg)\n\n*Engineering review sequence: Specify → Inspect → Compare → Record. Keep the recorded evidence with the accepted configuration.*\n\n## Primary references and further reading\n\nUse the original specifications and product documentation for implementation details. The examples in this guide are illustrative engineering scenarios, not published project results.\n\n- [FieldComm Group — HART technology](https://www.fieldcommgroup.org/technologies/hart)\n- [NIST — Policy on metrological traceability](https://www.nist.gov/calibrations/traceability)\n\n---\n\nCite the canonical article: https://wiki.aspotomasyon.com/article/temperature-measurement-rtd-thermocouple-selection (Temperature Measurement: RTD and Thermocouple Selection, ASP OTOMASYON, updated 2026-09-13).\n","headings":[{"id":"resistance-temperature-detectors-rtds","title":"Resistance Temperature Detectors (RTDs)"},{"id":"thermocouples","title":"Thermocouples"},{"id":"rtd-vs-thermocouple-selection-guide","title":"RTD vs. Thermocouple Selection Guide"},{"id":"installation-best-practices","title":"Installation Best Practices"},{"id":"apply-this-to-your-project","title":"Apply this to your project"},{"id":"primary-references-and-further-reading","title":"Primary references and further reading"}],"faq":[],"references":[{"name":"FieldComm Group — HART technology","url":"https://www.fieldcommgroup.org/technologies/hart"},{"name":"NIST — Policy on metrological traceability","url":"https://www.nist.gov/calibrations/traceability"}],"related":[{"slug":"plc-io-wiring-guide","title":"PLC I/O Wiring and Termination Best Practices","summary":"The quality of a control system's field wiring determines its reliability more than any other installation factor.","category":{"slug":"technical-guides","name":"Technical Guides"},"url":"https://wiki.aspotomasyon.com/article/plc-io-wiring-guide","markdown_url":"https://wiki.aspotomasyon.com/article/plc-io-wiring-guide.md","api_url":"https://wiki.aspotomasyon.com/api/v1/articles/plc-io-wiring-guide","published":"2026-08-11T13:05:24+00:00","modified":"2026-09-13T11:07:23+00:00","reading_minutes":5,"word_count":922,"image":"https://wiki.aspotomasyon.com/assets/social/plc-io-wiring-guide-44d38c8e0cf7.png"},{"slug":"smart-transmitter-configuration-calibration","title":"Smart Transmitter Configuration and Calibration","summary":"Smart transmitters represent the dominant technology in modern process instrumentation across oil and gas, chemical, pharmaceutical, power generation, and…","category":{"slug":"field-devices-instrumentation","name":"Field Devices & Instrumentation"},"url":"https://wiki.aspotomasyon.com/article/smart-transmitter-configuration-calibration","markdown_url":"https://wiki.aspotomasyon.com/article/smart-transmitter-configuration-calibration.md","api_url":"https://wiki.aspotomasyon.com/api/v1/articles/smart-transmitter-configuration-calibration","published":"2026-05-13T12:07:56+00:00","modified":"2026-09-13T11:07:23+00:00","reading_minutes":8,"word_count":1735,"image":"https://wiki.aspotomasyon.com/assets/social/smart-transmitter-configuration-calibration-71c62d2b1655.png"},{"slug":"analog-signal-scaling-techniques-industrial-automation","title":"Analog Signal Scaling Techniques for Industrial Automation","summary":"Accurate analog signal scaling is fundamental to industrial measurement and control.","category":{"slug":"technical-guides","name":"Technical Guides"},"url":"https://wiki.aspotomasyon.com/article/analog-signal-scaling-techniques-industrial-automation","markdown_url":"https://wiki.aspotomasyon.com/article/analog-signal-scaling-techniques-industrial-automation.md","api_url":"https://wiki.aspotomasyon.com/api/v1/articles/analog-signal-scaling-techniques-industrial-automation","published":"2026-05-13T11:58:29+00:00","modified":"2026-09-13T11:07:23+00:00","reading_minutes":6,"word_count":1314,"image":"https://wiki.aspotomasyon.com/assets/social/analog-signal-scaling-techniques-industrial-automation-5708a7fe4791.png"},{"slug":"iiot-sensor-integration-patterns","title":"IIoT Sensor Integration Patterns","summary":"Integrating industrial sensors into an Industrial Internet of Things (IIoT) architecture requires careful selection of sensor technologies, communication…","category":{"slug":"digital-transformation","name":"Digital Transformation"},"url":"https://wiki.aspotomasyon.com/article/iiot-sensor-integration-patterns","markdown_url":"https://wiki.aspotomasyon.com/article/iiot-sensor-integration-patterns.md","api_url":"https://wiki.aspotomasyon.com/api/v1/articles/iiot-sensor-integration-patterns","published":"2026-05-12T12:47:31+00:00","modified":"2026-09-13T11:07:23+00:00","reading_minutes":5,"word_count":965,"image":"https://wiki.aspotomasyon.com/assets/social/iiot-sensor-integration-patterns-083cebd7e251.png"}],"citation":"ASP OTOMASYON. Temperature Measurement: RTD and Thermocouple Selection. Updated 2026-09-13. https://wiki.aspotomasyon.com/article/temperature-measurement-rtd-thermocouple-selection"}}