--- title: What Causes Temperature Sensors to Fail? description: Learn about the common causes of temperature sensor failures, from environmental factors to installation issues, and how to enhance measurement reliability. image: https://blog.ashcroft.com/hubfs/TempSensorFail_BLOG.jpg --- [Skip to main content](https://blog.ashcroft.com/what-causes-temperature-sensors-to-fail#maincontent) Select Region - [US & Canada](https://ashcroft.com) - [Europe](https://ashcroft.eu/) - [China](http://www.ashcroft.com.cn/) - [Mexico & Central America](http://www.ashcroft.com.mx/) - [South America](https://ashcroftsudamericana.com/) - [Brazil](https://ashcroft.com.br/) Login - [Distributor Extranet](https://extranet.ashcroft.com/) - [Product Configurator](https://www.ashcroft.com/my-account/) [Careers](https://www.ashcroft.com/careers) [Contact](https://www.ashcroft.com/contact/) [![ashcroft-logo-lg-2](https://blog.ashcroft.com/hs-fs/hubfs/ashcroft-logo-lg-2.png?width=261&height=60&name=ashcroft-logo-lg-2.png) ![ashcroft-logo-white](https://blog.ashcroft.com/hubfs/assets/images/ashcroft-logo-white.svg)](https://www.ashcroft.com/) Products Pressure Instruments - [Pressure Gauges](https://www.ashcroft.com/products/pressure/pressure-gauges) - [Pressure Switches](https://www.ashcroft.com/products/pressure/pressure-switches) - [Pressure Sensors (Transducers/Transmitters)](https://www.ashcroft.com/products/pressure/pressure-sensors) - [Diaphragm Seals-Isolators](https://www.ashcroft.com/products/pressure/diaphragm-seals-and-isolators) - [Accessories](https://www.ashcroft.com/products/pressure/accessories) - [SMART Transmitter Assemblies](https://www.ashcroft.com/products/pressure/smart-transmitter-assemblies) Temperature Instruments - [Thermometers](https://www.ashcroft.com/products/temperature/thermometers) - [Thermowells](https://www.ashcroft.com/products/temperature/thermowells) - [Temperature Switches](https://www.ashcroft.com/products/temperature/temperature-switches) - [RTDs](https://www.ashcroft.com/products/temperature/rtds) - [Thermocouples](https://www.ashcroft.com/products/temperature/thermocouples) - [Temperature Transmitters](https://www.ashcroft.com/products/temperature/temperature-transmitters/) - [MultiPoint Temperature Sensors](https://www.ashcroft.com/products/temperature/multipoint-temperature-sensors/) - [OEM Temperature Sensors](https://www.ashcroft.com/products/temperature/oem-temperature-sensors) Test Instruments - [Calibrators](https://www.ashcroft.com/products/test-instruments/calibrators/) - [Hand Pumps-Controllers](https://www.ashcroft.com/products/test-instruments/hand-pumps-and-controllers/) - [Hydraulic Testers](https://www.ashcroft.com/products/test-instruments/hydraulic-testers/) - [Test Gauges](https://www.ashcroft.com/products/test-instruments/test-gauges/) Helpful Tools - [Product Documentation](https://www.ashcroft.com/learn/product-documentation/) - [Product & Quality Certifications](https://www.ashcroft.com/about/quality-certifications/) - [Material Selector & Corrosion Guide](https://www.ashcroft.com/webtools/materialselector/) - [Unit Converter](https://www.ashcroft.com/webtools/calculatoruom/) - [Wake Frequency Calculator](https://www.ashcroft.com/webtools/calculatorwf/) - [FAQs](https://www.ashcroft.com/faq/) Keep your critical equipment and processes running with reliable pressure and temperature measurements. [Configure Product Part Number](https://www.ashcroft.com/product-configurator) [Get a Quote](https://www.ashcroft.com/quote) Industries Process Industry Overview - [Solutions for the Process Industry](https://www.ashcroft.com/solutions/process-industry-instrumentation) - [Large Projects/EPC](https://www.ashcroft.com/solutions/process-industry-instrumentation/engineering-procurement-construction-large-projects/) - [Critical Application Solution Experts](https://www.ashcroft.com/solutions/process-industry-instrumentation/critical-application-solution-experts/) - [Distributor Locator](https://www.ashcroft.com/ashcroft-distributors/) Process Industry Solutions - [Chemical & Petrochemical](https://www.ashcroft.com/solutions/process-industry-instrumentation/chemical-process-instrumentation/) - [Food & Beverage](https://www.ashcroft.com/solutions/process-industry-instrumentation-sensors/food-beverage/) - [Metals & Minerals](https://www.ashcroft.com/solutions/process-industry-instrumentation/mining-instruments/) - [Oil & Gas](https://www.ashcroft.com/solutions/process-industry-instrumentation/oil-gas-instrumentation/) - [Pharmaceutical & Biotech](https://www.ashcroft.com/solutions/process-industry-instrumentation/pharmaceutical-and-biotechnology-application-solutions/) - [Power](https://www.ashcroft.com/solutions/process-industry-instrumentation/power-plant-instrumentation/) - [Water & Wastewater](https://www.ashcroft.com/solutions/process-industry-instrumentation/instruments-used-in-water-treatment-plant/) Industrial/OEM Markets Overview - [Solutions for Industrial OEM](https://www.ashcroft.com/solutions/industrial-oem/) - [Custom Engineered Solutions (CES)](https://www.ashcroft.com/solutions/industrial-oem-custom-engineered-solutions/) Industrial/OEM Markets - [HVAC/R](https://www.ashcroft.com/solutions/industrial-oem/hvac-refrigeration-equipment/) - [Hydrogen & Alternative Energu](https://www.ashcroft.com/solutions/industrial-oem/hydrogen-alternative-energy/) - [Industrial Equipment Manufacturer](https://www.ashcroft.com/solutions/industrial-oem/industrial-equipment-manufacturer-supplier/) - [Medical Health & Safety](https://www.ashcroft.com/solutions/industrial-oem/medical-biotechnology-instruments/) - [Process Equipment Manufacturer](https://www.ashcroft.com/solutions/industrial-oem/process-equipment-manufacturer/) - [Semiconductor](https://www.ashcroft.com/solutions/industrial-oem/ultra-high-purity-gas-delivery-semiconductor-manufacturing/) - [Vehicles](https://www.ashcroft.com/solutions/industrial-oem/vehicles-working-machines/) Resources - [Product Documentations](https://www.ashcroft.com/learn/product-documentation/) - [Educational Resources](https://www.ashcroft.com/learn/resource-center/) About - [About](https://www.ashcroft.com/about/) - [Corporate Responsibility](https://www.ashcroft.com/about/corporate-responsibility/) - [Code of Conduct](https://www.ashcroft.com/about/corporate-responsibility/code-of-conduct/) - [Trade Compliance](https://www.ashcroft.com/about/corporate-responsibility/trade-compliance/) - [Product Stewardship](https://www.ashcroft.com/about/corporate-responsibility/product-stewardship/) - [Company News & Events](https://www.ashcroft.com/news-events/) - [Leadership Team](https://www.ashcroft.com/about/leadership/) - [Brands & Trademarks](https://www.ashcroft.com/about/brands-trademarks/) - [Careers](https://www.ashcroft.com/careers/) [Get a Quote](https://sales.ashcroft.com/quote) Products Products [Pressure Instruments](https://www.ashcroft.com) Pressure Instruments [Pressure Gauges](https://www.ashcroft.com/products/pressure/pressure-gauges) [Pressure Switches](https://www.ashcroft.com/products/pressure/pressure-switches) [Pressure Sensors (Transducers/Transmitters)](https://www.ashcroft.com/products/pressure/pressure-sensors) [Diaphragm Seals-Isolators](https://www.ashcroft.com/products/pressure/diaphragm-seals-and-isolators) [Accessories](https://www.ashcroft.com/products/pressure/accessories) [SMART Transmitter Assemblies](https://www.ashcroft.com/products/pressure/smart-transmitter-assemblies) [Temperature Instruments](https://www.ashcroft.com) Temperature Instruments [Thermometers](https://www.ashcroft.com/products/temperature/thermometers) [Thermowells](https://www.ashcroft.com/products/temperature/thermowells) [Temperature Switches](https://www.ashcroft.com/products/temperature/temperature-switches) [RTDs](https://www.ashcroft.com/products/temperature/rtds) [Thermocouples](https://www.ashcroft.com/products/temperature/thermocouples) [Temperature Transmitters](https://www.ashcroft.com/products/temperature/temperature-transmitters/) [MultiPoint Temperature Sensors](https://www.ashcroft.com/products/temperature/multipoint-temperature-sensors/) [OEM Temperature Sensors](https://www.ashcroft.com/products/temperature/oem-temperature-sensors) [Test Instruments](https://www.impactplus.com) Test Instruments [Calibrators](https://www.ashcroft.com/products/test-instruments/calibrators/) [Hand Pumps-Controllers](https://www.ashcroft.com/products/test-instruments/hand-pumps-and-controllers/) [Hydraulic Testers](https://www.ashcroft.com/products/test-instruments/hydraulic-testers/) [Test Gauges](https://www.ashcroft.com/products/test-instruments/test-gauges/) [Helpful Tools](https://www.impactplus.com) Helpful Tools [Product Documentation](https://www.ashcroft.com/learn/product-documentation/) [Product & Quality Certifications](https://www.ashcroft.com/about/quality-certifications/) [Material Selector & Corrosion Guide](https://www.ashcroft.com/webtools/materialselector/) [Unit Converter](https://www.ashcroft.com/webtools/calculatoruom/) [Wake Frequency Calculator](https://www.ashcroft.com/webtools/calculatorwf/) [FAQs](https://www.ashcroft.com/faq/) Industries Industries [Process Industry Overview](https://www.impactplus.com) Process Industry Overview [Solutions for the Process Industry](https://www.ashcroft.com/solutions/process-industry-instrumentation) [Large Projects/EPC](https://www.ashcroft.com/solutions/process-industry-instrumentation/engineering-procurement-construction-large-projects/) [Critical Application Solution Experts](https://www.ashcroft.com/solutions/process-industry-instrumentation/critical-application-solution-experts/) [Distributor Locator](https://www.ashcroft.com/ashcroft-distributors/) [Process Industry Solutions](https://www.impactplus.com) Process Industry Solutions [Chemical & Petrochemical](https://www.ashcroft.com/solutions/process-industry-instrumentation/chemical-process-instrumentation/) [Food & Beverage](https://www.ashcroft.com/solutions/process-industry-instrumentation-sensors/food-beverage/) [Metals & Minerals](https://www.ashcroft.com/solutions/process-industry-instrumentation/mining-instruments/) [Oil & Gas](https://www.ashcroft.com/solutions/process-industry-instrumentation/oil-gas-instrumentation/) [Pharmaceutical & Biotech](https://www.ashcroft.com/solutions/process-industry-instrumentation/pharmaceutical-and-biotechnology-application-solutions/) [Power](https://www.ashcroft.com/solutions/process-industry-instrumentation/power-plant-instrumentation/) [Water & Wastewater](https://www.ashcroft.com/solutions/process-industry-instrumentation/instruments-used-in-water-treatment-plant/) [Industrial/OEM Markets Overview](https://www.impactplus.com) Industrial/OEM Markets Overview [Solutions for Industrial OEM](https://www.ashcroft.com/solutions/industrial-oem/) [Custom Engineered Solutions (CES)](https://www.ashcroft.com/solutions/industrial-oem-custom-engineered-solutions/) [Industrial/OEM Markets](https://www.impactplus.com) Industrial/OEM Markets [HVAC/R](https://www.ashcroft.com/solutions/industrial-oem/hvac-refrigeration-equipment/) [Hydrogen & Alternative Energu](https://www.ashcroft.com/solutions/industrial-oem/hydrogen-alternative-energy/) [Industrial Equipment Manufacturer](https://www.ashcroft.com/solutions/industrial-oem/industrial-equipment-manufacturer-supplier/) [Medical Health & Safety](https://www.ashcroft.com/solutions/industrial-oem/medical-biotechnology-instruments/) [Process Equipment Manufacturer](https://www.ashcroft.com/solutions/industrial-oem/process-equipment-manufacturer/) [Semiconductor](https://www.ashcroft.com/solutions/industrial-oem/ultra-high-purity-gas-delivery-semiconductor-manufacturing/) [Vehicles](https://www.ashcroft.com/solutions/industrial-oem/vehicles-working-machines/) Resources Resources [Product Documentations](https://www.ashcroft.com/learn/product-documentation/) [Educational Resources](https://www.ashcroft.com/learn/resource-center/) About About [About](https://www.ashcroft.com/about/) [Corporate Responsibility](https://www.ashcroft.com/about/corporate-responsibility/) [Code of Conduct](https://www.ashcroft.com/about/corporate-responsibility/code-of-conduct/) [Trade Compliance](https://www.ashcroft.com/about/corporate-responsibility/trade-compliance/) [Product Stewardship](https://www.ashcroft.com/about/corporate-responsibility/product-stewardship/) [Company News & Events](https://www.ashcroft.com/news-events/) [Leadership Team](https://www.ashcroft.com/about/leadership/) [Brands & Trademarks](https://www.ashcroft.com/about/brands-trademarks/) [Careers](https://www.ashcroft.com/careers/) Select Region Select Region [US & Canada](https://ashcroft.com) [Europe](https://ashcroft.eu/) [China](http://www.ashcroft.com.cn/) [Mexico & Central America](http://www.ashcroft.com.mx/) [South America](https://ashcroftsudamericana.com/) [Brazil](https://ashcroft.com.br/) Login Login [Distributor Extranet](https://extranet.ashcroft.com/) [Product Configurator](https://www.ashcroft.com/my-account/) [Careers](https://www.ashcroft.com/careers) [Contact](https://www.ashcroft.com/contact/) [Get a Quote](https://sales.ashcroft.com/quote) [«  View All Articles](https://blog.ashcroft.com/) ![Dave Dlugos, Product Technical Leader's headshot](https://blog.ashcroft.com/hs-fs/hubfs/dave-dlugos.jpg?width=50&height=50&name=dave-dlugos.jpg) **By:** [Dave Dlugos](https://blog.ashcroft.com/author/dave-dlugos) Product Technical Leader **Published on:** June 22nd, 2026 **Topics:** [RTD](https://blog.ashcroft.com/topic/rtd) [temperature sensor](https://blog.ashcroft.com/topic/temperature-sensor) [thermocouple](https://blog.ashcroft.com/topic/thermocouple) **Share:** [mailto:?subject=What+Causes+Temperature+Sensors+to+Fail%3F&body=https://blog.ashcroft.com/what-causes-temperature-sensors-to-fail](mailto:?subject=What+Causes+Temperature+Sensors+to+Fail%3F&body=https://blog.ashcroft.com/what-causes-temperature-sensors-to-fail) Subscribe Never miss a blog post! Subscribe now and get the latest blog posts delivered straight to your inbox. # What Causes Temperature Sensors to Fail? Print/Save as PDF ![Dave Dlugos, Product Technical Leader's headshot](https://blog.ashcroft.com/hs-fs/hubfs/dave-dlugos.jpg?width=50&height=50&name=dave-dlugos.jpg) **By:** [Dave Dlugos](https://blog.ashcroft.com/author/dave-dlugos) Product Technical Leader **Published on:** June 22nd, 2026 **Topics:** [RTD](https://blog.ashcroft.com/topic/rtd) [temperature sensor](https://blog.ashcroft.com/topic/temperature-sensor) [thermocouple](https://blog.ashcroft.com/topic/thermocouple) **Share:** [mailto:?subject=What+Causes+Temperature+Sensors+to+Fail%3F&body=https://blog.ashcroft.com/what-causes-temperature-sensors-to-fail](mailto:?subject=What+Causes+Temperature+Sensors+to+Fail%3F&body=https://blog.ashcroft.com/what-causes-temperature-sensors-to-fail) ![Reasons temperature sensors fail](https://blog.ashcroft.com/hs-fs/hubfs/TempSensorFail_BLOG.jpg?width=1600&height=534&name=TempSensorFail_BLOG.jpg) Temperature sensors can fail for many reasons, including vibration, moisture ingress, wiring issues, environmental exposure, and operating conditions that exceed their design limits. Understanding the causes of temperature sensor failure can help improve measurement reliability, reduce downtime, and prevent costly troubleshooting efforts. When a temperature sensor begins producing inaccurate readings or stops working altogether, the consequences can range from reduced process efficiency to unexpected equipment shutdowns. The challenge is that the sensing element itself does not always cause sensor failures. Installation practices, environmental conditions, and application requirements often play a significant role in long-term performance. At Ashcroft, we help engineers and maintenance professionals select temperature measurement solutions for demanding industrial environments. Read this article to learn the most common causes of RTD and thermocouple failures, how these failure mechanisms differ, and what steps can help extend sensor life. ## What are common types of temperature sensors? [Resistance Temperature Detectors (RTDs)](https://www.ashcroft.com/products/temperature/rtds/) and [thermocouples](https://www.ashcroft.com/products/temperature/thermocouples/) are among the most common temperature measurement instruments used in industrial applications. While both provide reliable temperature data, they use different sensing technologies and are affected by environmental and operating conditions in different ways. Read, [When to use an RTD vs. a Thermocouple](https://blog.ashcroft.com/rtd-vs-thermocouple-temperature-sensor) to learn more.  The table below highlights some of the key differences between the two technologies. ### *Table 1. RTD vs. Thermocouple Key Differences* **RTD** - **Accuracy:** High - **Stability:** Excellent - **Response:** Moderate - **Temperature range:** Moderate - **Common concerns:** Moisture, wiring issues, and drift **Thermocouple** - **Accuracy:** Moderate - **Stability:** Good - **Response:** Fast - **Temperature range:** Very wide - **Common concerns:** Thermal cycling, contamination, and high temperatures ## What causes RTD temperature sensors to fail? RTDs are known for excellent accuracy and stability, but several factors can affect their performance over time: ### Mechanical damage and vibration can damage internal components RTDs are often installed on pumps, compressors, and other equipment where vibration is common. Over time, repeated mechanical stress can weaken lead wires, damage internal connections, or affect the sensing element. Common signs include: • Intermittent readings • Open circuit indications • Unexpected signal loss How to help prevent it: • Support sensor assemblies properly • Use [thermowells](https://www.ashcroft.com/products/temperature/thermowells/) when appropriate • Select designs intended for vibration-prone applications ### Moisture and corrosion can affect measurement accuracy Moisture ingress and corrosive environments can damage insulation, terminals, and sensor components. Left unchecked, these conditions can cause inaccurate readings, calibration drift, or complete failure. Common signs include: • Unstable readings • Visible corrosion • Increased calibration drift How to help prevent it: • Use materials compatible with the environment • Verify enclosure and environmental ratings • Protect electrical connections from moisture ### Wiring and installation issues can create false readings Many RTD problems are traced back to wiring issues rather than the sensing element itself. Loose connections, damaged cables, lead resistance, or improper installation can all affect measurement accuracy. Common signs include: • Inconsistent readings • Signal loss • Large measurement errors How to help prevent it: • Inspect wiring regularly • Verify connection integrity • Use appropriate wiring configurations for accuracy requirements ### Calibration drift can develop over time Although RTDs are valued for long-term stability, prolonged exposure to elevated temperatures and harsh environments can gradually affect accuracy. Common signs include: • Readings that no longer match reference measurements • Increasing measurement error over time How to help prevent it: • Establish calibration intervals • Monitor performance in critical applications • Replace sensors when drift exceeds acceptable limits ## What causes thermocouple temperature sensors to fail? Thermocouples are durable and capable of measuring extremely high temperatures. However, they are susceptible to several failure mechanisms that differ from RTDs. ### Thermal cycling can cause material fatigue Repeated heating and cooling cycles create expansion and contraction within thermocouple materials. Over time, this can weaken the sensing junction and lead to failure. Common signs include: • Intermittent measurements • Open circuits • Reduced reliability during process cycling How to help prevent it: • Select materials designed for thermal shock resistance • Review application conditions during sensor selection ### Contamination can lead to measurement drift High-temperature environments can introduce contaminants that alter thermoelement chemistry and affect measurement accuracy. Common signs include: • Gradual loss of accuracy • Calibration changes over time How to help prevent it: • Use protective sheaths • Select insulation materials appropriate for the application ### Excessive temperatures can shorten sensor life Every temperature sensor has an intended operating range. Operating continuously near or beyond those limits can accelerate material deteriorationand reduce measurement reliability. ### *Figure 2. Typical temperature ranges by sensor technology* | **Sensor Type** | **Typical Operating Range** | | --- | --- | | RTD | -200 °C to 600 °C | | Thermocouple | -200 °C to 1,700 °C\* | *\*Actual temperature capability depends on thermocouple type, sheath material, and application conditions.\** Common signs include: • Increased drift • Reduced accuracy • Premature sensor failure How to help prevent it: • Select the proper sensor technology for the application • Verify expected process temperatures during specification ### Chemical exposure and installation errors can cause premature failure Corrosive media, moisture, improper thermocouple selection, wiring errors, and polarity issues can all affect performance. Common signs include: • False readings • Measurement instability • Unexpected sensor failure How to help prevent it: • Verify material compatibility • Confirm thermocouple type and wiring during installation • Inspect assemblies during routine maintenance ## Many temperature sensor failures can be prevented While every application is different, temperature sensor issues are often associated with vibration, environmental exposure, wiring and installation problems, or operating conditions that exceed the sensor's design limits. Many of these issues can be prevented through proper sensor selection, installation, and maintenance practices. ## Ready to learn more? Temperature sensors play a critical role in maintaining safe and efficient operations. Understanding the most common causes of RTD and thermocouple failures can help identify problems earlier, improve reliability, and reduce unnecessary downtime. Plus, selecting a solution designed for the operating environment can significantly improve long-term performance.  [Contact us](https://www.ashcroft.com/contact/) to speak with a product specialist who can answer any additional questions you may have. In the meantime, take a look at related resources below, or [download](https://www.ashcroft.com/learn/product-documentation?pageNumber=1&search=RTD&sortType=date&sortOrder=DESC&content_type=31) our temperature sensor guide.  [![New call-to-action](https://no-cache.hubspot.com/cta/default/4021582/c81b75cc-efe3-4427-a0d5-bf410e9b3cd4.png)](https://cta-redirect.hubspot.com/cta/redirect/4021582/c81b75cc-efe3-4427-a0d5-bf410e9b3cd4)   [Dave Dlugos, Product Technical Leader](https://blog.ashcroft.com/author/dave-dlugos) Dave Dlugos has a BSEE degree and 40 years of experience in the measurement industry performing design engineering and product management. He has earned 4 U.S. patents and joined Ashcroft in 2007, currently as the Product Technical Leader. He is a senior member of the International Society of Automation (ISA), past ISA District 1, Vice President, past ISA water and wastewater division board member and the past President of CT Valley ISA Section. Connect: [mailto:david.dlugos@ashcroft.com](mailto:david.dlugos@ashcroft.com) Topics: [RTD](https://blog.ashcroft.com/topic/rtd) [temperature sensor](https://blog.ashcroft.com/topic/temperature-sensor) [thermocouple](https://blog.ashcroft.com/topic/thermocouple) Don't forget to share this post: ## Related Articles ### [![](https://blog.ashcroft.com/hs-fs/hubfs/SteamApplic_BLOG.jpg?width=1600&height=534&name=SteamApplic_BLOG.jpg) How to Choose the Right Temperature Instrument for Steam Applications August , 2026|5 min. read](https://blog.ashcroft.com/temperature-instrument-for-steam-applications) ### [![Important features of an RTD and Thermocouple](https://blog.ashcroft.com/hs-fs/hubfs/RTD-TC_Features_BLOG_V2.jpg?width=1600&height=534&name=RTD-TC_Features_BLOG_V2.jpg) What Are Important Features of Temperature Sensors? April , 2026|4 min. read](https://blog.ashcroft.com/what-are-important-features-of-temperature-sensors) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Repost-ReviewRTD_TC_BLOG_V1.jpg?width=1600&height=534&name=Repost-ReviewRTD_TC_BLOG_V1.jpg) Product Review: RTDs and Thermocouples October , 2025|3 min. read](https://blog.ashcroft.com/product-review-rtds-and-thermocouples) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/RTD_Element_Ohm_BLOG_V1.jpg?width=1600&height=534&name=RTD_Element_Ohm_BLOG_V1.jpg) How to Select the Right RTD Sensing Element for Your Application August , 2025|4 min. read](https://blog.ashcroft.com/how-to-select-the-right-rtd-sensing-element-for-your-application) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/TC%26RTD-Ext_BLOG_V1.jpg?width=1600&height=534&name=TC%26RTD-Ext_BLOG_V1.jpg) Thermocouple and RTD Lead Wire Extensions: What You Need To Know July , 2025|3 min. read](https://blog.ashcroft.com/thermocouple-and-rtd-extensions-what-you-need-to-know) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/IndustRefr_BLOG_V3.jpg?width=1600&height=534&name=IndustRefr_BLOG_V3.jpg) Temperature Sensors for Industrial Refrigeration Ammonia Compressors July , 2025|4 min. read](https://blog.ashcroft.com/temperature-sensors-for-refrigeration-ammonia-compressors) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Repost-RTDvsTC_BLOG_V3.jpg?width=1600&height=534&name=Repost-RTDvsTC_BLOG_V3.jpg) When to Use an RTD vs. a Thermocouple Temperature Sensor July , 2025|3 min. read](https://blog.ashcroft.com/rtd-vs-thermocouple-temperature-sensor) ### [![Cost of temperature sensors](https://blog.ashcroft.com/hs-fs/hubfs/TempSenseCost_BLOG_TempTues.jpg?width=1600&height=534&name=TempSenseCost_BLOG_TempTues.jpg) How Much Do Temperature Sensors Cost? June , 2025|4 min. read](https://blog.ashcroft.com/temperature-sensor-cost) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Repost_TW_TC_Bi_BLOG_V1.jpg?width=1600&height=534&name=Repost_TW_TC_Bi_BLOG_V1.jpg) How to Fit a Thermowell to Bimetal Thermometers, Thermocouples and RTDs June , 2025|4 min. read](https://blog.ashcroft.com/fitting-a-thermowell-to-bimetal-thermometers-or-rtds-thermocouples) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/XproofRTD_TC_BLOG_V2.jpg?width=1600&height=534&name=XproofRTD_TC_BLOG_V2.jpg) Why Fully Certified Thermocouples and RTDs are Critical for Hazardous Locations March , 2025|3 min. read](https://blog.ashcroft.com/rtd-thermocouple-certification-for-hazardous-locations) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Basics.BLOG_1-15-25.jpg?width=1600&height=534&name=Basics.BLOG_1-15-25.jpg) What is a Thermocouple January , 2025|3 min. read](https://blog.ashcroft.com/what-is-a-thermocouple) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Basics.BLOG_1-08-25.jpg?width=6667&height=2225&name=Basics.BLOG_1-08-25.jpg) What is an RTD? January , 2025|3 min. read](https://blog.ashcroft.com/what-is-an-rtd) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Basics.BLOG_12-18-24.jpg?width=1600&height=534&name=Basics.BLOG_12-18-24.jpg) Which RTD & Thermocouple Lag Extension is right for me? December , 2024|3 min. read](https://blog.ashcroft.com/rtd-thermocouple-lag-types) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Thermo_BiMetal_BLOG_RevA_V3.jpg?width=1600&height=534&name=Thermo_BiMetal_BLOG_RevA_V3.jpg) How to Calculate Thermowell Stem Length for Temperature Instruments October , 2024|4 min. read](https://blog.ashcroft.com/how-to-calculate-thermowell-stem-length-for-temperature-sensors) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/TC_Junct_BLOG.jpg?width=2133&height=712&name=TC_Junct_BLOG.jpg) Grounded vs. Ungrounded Thermocouple Junctions: Why Select One over the Other? September , 2024|4 min. read](https://blog.ashcroft.com/grounded-vs-ungrounded-thermocouple-junctions) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/HowRTD.BLOG2024FX.jpg?width=1600&height=534&name=HowRTD.BLOG2024FX.jpg) How to Perform an RTD Calibration September , 2024|3 min. read](https://blog.ashcroft.com/how-to-perform-rtd-calibration) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/WhyRTD.BLOG.jpg?width=2133&height=712&name=WhyRTD.BLOG.jpg) Why and When is RTD Calibration Necessary? August , 2024|5 min. read](https://blog.ashcroft.com/why-and-when-is-rtd-calibration-necessary) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/WhyTC.Calib_BLOG_TempTues.jpg?width=1600&height=534&name=WhyTC.Calib_BLOG_TempTues.jpg) How to Perform a Thermocouple Calibration and Why it Matters June , 2024|4 min. read](https://blog.ashcroft.com/why-how-to-perform-thermocouple-calibration) ### [![Ashcroft Thermocouple Temperature Sensors](https://blog.ashcroft.com/hs-fs/hubfs/ThermoCalibBLOG.jpg?width=2133&height=712&name=ThermoCalibBLOG.jpg) What is Thermocouple Calibration? May , 2024|4 min. read](https://blog.ashcroft.com/what-is-thermocouple-calibration-benefits) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/LeadWireTCBLOG_RevA_V2.jpg?width=1600&height=534&name=LeadWireTCBLOG_RevA_V2.jpg) Which Thermocouple lead wire is best for my application? April , 2024|3 min. read](https://blog.ashcroft.com/which-thermocouple-leadwire-is-best) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Basics.BLOG_3-6-24.jpg?width=2133&height=712&name=Basics.BLOG_3-6-24.jpg) What is a temperature sensor? March , 2024|3 min. read](https://blog.ashcroft.com/what-is-a-temperature-sensor) ### [![](https://blog.ashcroft.com/hs-fs/hubfs/Basics.BLOG_2-14-24.jpg?width=3333&height=1113&name=Basics.BLOG_2-14-24.jpg) How is temperature measured? February , 2024|3 min. read](https://blog.ashcroft.com/how-is-temperature-measured) ### [![What is a Thermowell?](https://blog.ashcroft.com/hs-fs/hubfs/Basics.BLOG_Thermowell-1-31-24.jpg?width=3333&height=1113&name=Basics.BLOG_Thermowell-1-31-24.jpg) What is a Thermowell? January , 2024|4 min. read](https://blog.ashcroft.com/what-is-a-thermowell) ### [![Safe Temperature Sensors for Hydrogen Applications](https://blog.ashcroft.com/hs-fs/hubfs/Repost-Temp.H2_BLOG.jpg?width=1600&height=534&name=Repost-Temp.H2_BLOG.jpg) What are Safe Temperature Sensors for Hydrogen Applications? November , 2023|4 min. read](https://blog.ashcroft.com/safe-temperature-sensors-for-hydrogen-applications) ![https://f.hubspotusercontent30.net/hubfs/4021582/assets/images/ashcroft-logo-white.svg](https://blog.ashcroft.com/hubfs/assets/images/ashcroft-logo-white.svg) 250 East Main Street Stratford, CT 06614 [800.328.8258](tel:+1800.328.8258) [Contact](https://www.ashcroft.com/contact/) [Learning Center](https://www.ashcroft.com/learn/resource-center) [Blog](https://blog.ashcroft.com/) [Subscribe to Blog](https://sales.ashcroft.com/ashcroft-blog-subscribe) [Facebook](https://www.facebook.com/AshcroftInc) [Instagram](https://www.instagram.com/ashcroftinc/) [LinkedIn](https://www.linkedin.com/company/ashcroft-inc-/) [YouTube](https://www.youtube.com/user/AshcroftInc) [PRODUCTS](https://www.ashcroft.com/products) - [Pressure Instruments](https://www.ashcroft.com/products/#pressure) - [Temperature Instruments](https://www.ashcroft.com/products/#temperature) - [Test Instruments](https://www.ashcroft.com/products/#test-instruments) - [Product Configurator](https://www.ashcroft.com/product-configurator/) - [Product Documentation](https://www.ashcroft.com/learn/product-documentation) - [Pressure Gauge Selection Tool](https://www.ashcroft.com/pressure-gauge-selection-tool/) - [Product & Quality Certifications](https://www.ashcroft.com/about/quality-certifications/) PROCESS INDUSTRY - [Overview](https://www.ashcroft.com/solutions/process-industry-instrumentation/) - [Large Projects/EPC](https://www.ashcroft.com/solutions/process-industry-instrumentation/engineering-procurement-construction-large-projects/) - [Critical Application Solutions Experts (CASE)](https://www.ashcroft.com/solutions/process-industry-instrumentation/critical-application-solution-experts/) - [Distributor Locator](https://www.ashcroft.com/ashcroft-distributors/) INDUSTRIAL/OEM - [Overview](https://www.ashcroft.com/solutions/industrial-oem/) - [Custom Engineered Solutions (CES)](https://www.ashcroft.com/solutions/industrial-oem-custom-engineered-solutions/) COMPANY - [About](https://www.ashcroft.com/about/) - [Corporate Responsibility](https://www.ashcroft.com/about/corporate-responsibility/) - [Code of Conduct](https://www.ashcroft.com/about/corporate-responsibility/code-of-conduct/) - [Trade Compliance](https://www.ashcroft.com/about/corporate-responsibility/trade-compliance/) - [Product Stewardship](https://www.ashcroft.com/about/corporate-responsibility/product-stewardship/) - [Company News & Events](https://www.ashcroft.com/news-events/) - [Careers](https://www.ashcroft.com/careers/) - [Contact](https://www.ashcroft.com/contact/) © 2026 Ashcroft Inc.. All Rights Reserved. [Privacy Statement](https://www.ashcroft.com/privacy-policy/) | [Legal Disclaimer](https://www.ashcroft.com/disclaimer) | [Supplier Terms of Purchase](https://www.ashcroft.com/wp-content/uploads/2026/07/ashcroft-purchase-order-terms-conditions-revh-july26.pdf) | [Terms of Sales](https://www.ashcroft.com/wp-content/uploads/2023/08/terms-of-sale-ashcroft.pdf) | [Privacy Policy](https://www.ashcroft.com) ```json { "@context" : "https://schema.org", "@id" : "https://blog.ashcroft.com/#website", "@type" : "WebSite", "inLanguage" : "en-US", "name" : "Ashcroft Inc.", "potentialAction" : { "@type" : "SearchAction", "query-input" : "required name=search_term_string", "target" : "https://blog.ashcroft.com/search?term={search_term_string}" }, "publisher" : { "@id" : "https://blog.ashcroft.com/#organization" }, "url" : "https://blog.ashcroft.com" } ``` ```json { "@context" : "https://schema.org", "@id" : "https://blog.ashcroft.com/#organization", "@type" : "Organization", "address" : { "@type" : "PostalAddress", "addressCountry" : "US", "addressLocality" : "Stratford", "addressRegion" : "CT", "postalCode" : "06614", "streetAddress" : "250 East Main Street" }, "image" : { "@id" : "https://blog.ashcroft.com/#logo" }, "logo" : { "@id" : "https://blog.ashcroft.com/#logo", "@type" : "ImageObject", "caption" : "Ashcroft Logo", "contentUrl" : "https://4021582.fs1.hubspotusercontent-na1.net/hubfs/4021582/social-suggested-images/sales.ashcroft.comhs-fshubfsashcroft-logo-lg-2.png", "height" : 45, "inLanguage" : "en-US", "url" : "https://4021582.fs1.hubspotusercontent-na1.net/hubfs/4021582/social-suggested-images/sales.ashcroft.comhs-fshubfsashcroft-logo-lg-2.png", "width" : 200 }, "name" : "Ashcroft Inc.", "sameAs" : [ "https://www.facebook.com/AshcroftInc", "https://www.instagram.com/ashcroftinc/", "https://www.linkedin.com/company/ashcroft-inc-/", "https://www.youtube.com/user/AshcroftInc" ], "telephone" : "+18003288258", "url" : "https://blog.ashcroft.com" } ``` ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Dave Dlugos, Product Technical Leader", "url" : "https://blog.ashcroft.com/author/dave-dlugos" }, "dateCreated" : "2026-06-19T13:29:49", "datePublished" : "2026-06-22T10:51:44-0400", "description" : "Learn about the common causes of temperature sensor failures, from environmental factors to installation issues, and how to enhance measurement reliability.", "headline" : "What Causes Temperature Sensors to Fail?", "image" : [ "https://4021582.fs1.hubspotusercontent-na1.net/hubfs/4021582/TempSensorFail_BLOG.jpg" ], "inLanguage" : "en", "keywords" : [ "RTD", "temperature sensor", "thermocouple" ], "learningResourceType" : "article", "name" : "What Causes Temperature Sensors to Fail?", "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://4021582.fs1.hubspotusercontent-na1.net/hubfs/4021582/social-suggested-images/sales.ashcroft.comhs-fshubfsashcroft-logo-lg-2.png" }, "name" : "Ashcroft Inc." }, "timeRequired" : "PT3M", "url" : "https://blog.ashcroft.com/what-causes-temperature-sensors-to-fail" } ```