
Thermocouples are essential temperature sensors used across a broad range of industries for reliable and accurate measurements. At Thermo-Temp, we specialize in selling high-quality thermocouples and providing all related services – from expert guidance in selecting the right type, to calibration and certification of sensors for compliance. Thermo-Temp is your one-stop source for thermocouple purchases, calibration, maintenance, and technical support, backed by extensive lab assets, knowledge, and expertise. We serve oilfield service companies, fabricators, manufacturers, testing labs, and all industries where measurements matter.
The Thermo-Temp Advantage – Your Trusted Thermocouple Partner
Choosing Thermo-Temp means gaining a reliable partner for all your thermocouple needs. Here’s why clients across U.S. industries trust us as their go-to source for temperature measurement solutions:
Comprehensive Solutions: We are a true one-stop shop for thermocouples – offering product sales, calibration, certification, consulting, and ongoing support under one roof. This integrated approach saves you time and ensures consistency in quality and service.
Quality and Accuracy: Our thermocouples come from reputable brands and are tested for performance. With our ISO 9001 certification and ISO 17025 accredited lab, quality control and accuracy are built into everything we do. You can be confident that sensors from Thermo-Temp will meet rigorous standards and compliance requirements.
Industry Expertise: We have a proven track record serving diverse industries where accurate measurements are critical. Our experienced team understands industry-specific challenges (from oilfield conditions to aerospace specifications) and provides informed solutions tailored to your context.
Customer-Centric Service: Thermo-Temp is driven by a commitment to service and customer satisfaction. We take pride in our responsive communication, honest advice, and willingness to “go above and beyond” to help clients succeed.
Competitive & Fair Pricing: We believe in offering top-notch products and services at fair prices. By working closely and having longstanding relationships with multiple suppliers and optimizing our operations, we deliver competitive pricing and value that is hard to beat. Plus, our efficiency in both sales and calibration means you get quick results without unnecessary costs.
Wide Range of Thermocouple Types and Configurations
Thermo-Temp carries all types of thermocouples to meet any application requirement. Whether you need a common base metal thermocouple or a specialized high-temperature sensor, we have you covered. We sell thermocouples in various calibrations, sizes, and configurations, including but not limited to:
Type K Thermocouple (Chromel/Alumel) – A widely-used general-purpose thermocouple suitable for a broad temperature range (roughly –200°C to 1260°C).
Type J Thermocouple (Iron/Constantan) – A versatile thermocouple commonly used in industrial environments, effective up to ~750°C.
Type T Thermocouple (Copper/Constantan) – Ideal for low-temperature and cryogenic applications, with high accuracy in the –200°C to 370°C range.
Type E Thermocouple (Chromel/Constantan) – Offers a strong signal and good accuracy, useful for –270°C to 800°C applications.
Type N Thermocouple (Nicrosil/Nisil) – Designed for stability at high temperatures (similar range to Type K), with improved longevity in harsh conditions.
Type C Thermocouple (Tungsten/Rhenium) – Excellent for extremely high temperatures, up to 2315°C, ideal for aerospace, vacuum furnaces, and nuclear environments.
Type R thermocouple, Type S Thermocouple, Type B Thermocouple, (High-Temperature Types) – Noble metal thermocouples for extreme temperatures (up to ~1700°C), using platinum/rhodium elements for critical applications like aerospace heat treating.
In addition to standard bare-wire and probe thermocouples, we provide specialized constructions such as mineral-insulated (MGO) thermocouples, industrial beaded wire sensors, and other configurations for unique environments. Our inventory includes thermocouple probes, wires, connectors, and complete assemblies in various lengths and sheath materials (stainless steel, Inconel, ceramic protection tubes, etc.), ensuring you get the exact form factor required. If you need something custom, just let us know – even if a specific thermocouple or brand isn’t listed, we’ll get you what you need.
Insulated Thermocouple Wires, Extension Cables, and RTD Wiring Solutions

In addition to high-quality thermocouple probes and connectors, Thermo-Temp provides a complete range of insulated thermocouple wire and extension wire, cables, and RTD wiring products to support accurate temperature measurement across all industries.
Insulated Thermocouple Wire & Extension Wire
We stock and supply thermocouple wire in multiple insulation types (fiberglass, Teflon, PVC, Kapton, ceramic fiber, and more) to suit the environmental conditions of your application – including high temperatures, moisture, abrasion, and chemical exposure. Whether you need:
Thermocouple Cables & Assemblies
Thermo-Temp also supplies thermocouple cable assemblies for complex installations or long-distance signal transmission. Choose from armored cable, shielded cable, twisted pair, or multi-conductor thermocouple bundles with durable jacketing materials suited for your operating conditions. Custom cable sets can be built with connectors, junction boxes, and labeling to integrate seamlessly with your equipment.
Standard thermocouple wire for sensor fabrication
Thermocouple Extension wire for routing signals to instrumentation
Duplex wire with matching polarity for temperature consistency
Our inventory is ready to ship. We offer multiple gauge sizes, including 8 gauges, 11 gauge, 14 gauge element, and can cut to your required length. All wire products follow ANSI color coding for easy identification and error-free installation.
Type K Thermocouple Wire – General-purpose; ideal for oxidizing environments.
Type J Thermocouple Wire – Used in vacuum or reducing atmospheres; lower temperature range.
Type T Thermocouple Wire – Highly accurate in low-temperature cryogenic applications.
Type E Thermocouple Wire – High output; best for low-temperature, high-sensitivity needs.
Type N Thermocouple Wire – Stable in high-temperature, oxidizing environments.
Type R Thermocouple Wire – Used in high-temperature labs and furnaces; platinum-based.
Type S Thermocouple Wire – Suited for medical and biotech applications; high accuracy.
Type B Thermocouple Wire – Handles extremely high temperatures; common in glass manufacturing.
Type C Thermocouple Wire – Performs well in vacuum or inert atmospheres; aerospace and nuclear.
Mineral-Insulated (MI) Thermocouple Wire (Sensor Element) – Durable and flexible; harsh or confined industrial environments.
Omega Thermocouple Wire – Brand known for precision and reliability; used across all industries for custom and off-the-shelf sensor solutions.
RTD Wire & RTD Cables
For clients using RTDs (Resistance Temperature Detectors), we offer premium RTD cable and wire solutions in 2-wire, 3-wire, and 4-wire configurations. Our RTD wire products ensure signal integrity and accurate temperature readings, with low-resistance conductors and precision construction. Options include:
PFA or silicone insulation for high-temperature or sanitary environments
Shielded RTD cable for EMI/RFI resistance
Tinned copper, nickel-plated, or silver-plated wire
Whether you’re replacing a section of RTD cable or building a new temperature sensing system, Thermo-Temp can supply exactly what you need – fast.
Thermocouples for Every Industry and Application
We proudly serve every industry that relies on precise temperature measurement. Thermo-Temp’s thermocouples are used everywhere from heavy industrial settings to R&D labs. Some of the industries and applications we support include:
Oil & Gas and Petrochemical: Rugged thermocouples for refineries, pipelines, and drilling operations, built to withstand harsh and explosive environments.
Manufacturing & Heat Treatment: High-accuracy sensors for furnaces, ovens, and manufacturing lines – ensuring quality in metal fabrication, automotive, aerospace heat-treating (AMS 2750 compliance), plastics processing, and more.
Aerospace & Defense: Noble metal and specialty thermocouples capable of extreme high-temperature measurement for jet engine testing, spacecraft, and defense systems.
Food & Beverage and Pharmaceuticals: Sanitary and coated thermocouple probes for sterilization processes, ovens, freezers, and environmental chambers, helping maintain safety and regulatory compliance.
Power Generation & Energy: Durable thermocouples for boilers, turbines, and solar thermal systems, providing reliable readings in power plants and renewable energy installations.
Laboratories & Research: Fine-wire and fast-response thermocouples for scientific research, calibration labs, and electronics testing, where precision is paramount.
No matter your industry or specific application, Thermo-Temp can supply the right thermocouple solution. Our team understands the unique demands of different fields and will ensure you receive sensors suited to your environment and process requirements. If you have an uncommon or challenging use case, we welcome the challenge – we take on your temperature measurement challenges and find solutions for even the most demanding situations.
Thermocouple Calibration & Certification Services
In addition to sales, Thermo-Temp offers comprehensive thermocouple calibration and certification services. Accuracy and compliance are vital when it comes to temperature measurements, and our ISO/IEC 17025-accredited calibration laboratory ensures your thermocouples are calibrated to the highest standards. Each calibration is performed by professionally trained technicians using certified reference equipment and procedures, giving you confidence that your readings are accurate.
We provide NIST-traceable calibration certificates with detailed data for your thermocouples, satisfying quality system and audit requirements. Whether you need new thermocouples calibrated before use or existing sensors re-calibrated, our lab is equipped to help. We handle a wide range of thermocouple types (from mineral-insulated cable to fine-gauge survey wire and industrial probes) and can adjust, repair, or replace sensors as needed to meet specifications.

Thermo-Temp supports both in-house and on-site calibration options. For local operations in Texas and the surrounding areas, or large operations further away, our field service technicians can come to your facility to perform calibrations and temperature uniformity surveys (TUS) on ovens, furnaces, and installed thermocouple systems. If you are located outside our immediate region, you can ship us your thermocouples or instruments for calibration – we will service them promptly and return them to you swiftly, minimizing downtime. Our efficient calibration process and quick turnaround mean your temperature sensors will be back in operation with minimal disruption to your work.
Expert Consultation and Support
Selecting the correct thermocouple for a given application can be complex – but Thermo-Temp’s experts are here to help every step of the way. With decades of experience in temperature measurement, our team provides personalized consultation to ensure you get the optimal thermocouple type, material, and configuration for your unique requirements. Not sure whether you need a Type K versus Type N thermocouple, or what diameter probe will balance response time and durability? Just ask – our knowledgeable staff will explain the options in clear terms and advise on the best solution. We pride ourselves on being helpful in our guidance, so you can make informed decisions with confidence.
Thermo-Temp’s commitment to customer support doesn’t end at the sale. We assist with installation tips, usage guidelines, and troubleshooting if needed. Our goal is long-term customer success. Service is our heartbeat, and we strive to prove it on every interaction. When you consult with Thermo-Temp, you’re tapping into a wealth of practical know-how – we’ve solved temperature measurement challenges for clients in countless industries, and that expertise is applied directly to your project. From advising on thermocouple placement and instrumentation to ensuring compliance with industry standards, we act as your dedicated temperature measurement partner.
Competitive Pricing and Quick Turnaround

At Thermo-Temp, we understand that budget and lead time are critical factors for our clients. We offer competitive pricing on all our thermocouple products and services, ensuring you receive top value without compromising on quality. As a distributor for many leading temperature sensor brands – including well-known manufacturers like Omega Engineering, Pyromation, Fluke, Honeywell, WIKA and more – we leverage our supplier network to get you the best prices. Our extensive product range and decades old relationship with Pyromation means we can source virtually any thermocouple or accessory you need, often at a lower cost and faster timeline than competitors.
Fast turnaround on orders is another hallmark of our service. We maintain a robust inventory of common thermocouple types and thermocouple wire and have streamlined our order fulfillment process to ship your items as quickly as possible. In many cases, standard thermocouples and accessories can be shipped out immediately or within a short lead time. For custom or specialized thermocouples, we work closely with our manufacturing partners to expedite production and delivery. Our customers frequently praise Thermo-Temp’s responsiveness – we go the extra mile to meet urgent requests and keep your operations running smoothly. Minimizing your downtime is a top priority for us, so you can count on prompt delivery and efficient service on every order.
Ready to equip your operation with the best thermocouple solutions? Thermo-Temp is here to assist. Whether you need a single replacement probe or a bulk order of custom thermocouple assemblies, you will receive the same attentive, expert service. Contact our team today to discuss your temperature measurement needs, get a quote, or consult with our thermocouple specialists. We’re eager to help you find the perfect fit for your application and ensure your measurements are accurate, reliable, and compliant. At Thermo-Temp, your success and satisfaction are our highest priorities – talk to an expert, discuss a project, get a quote… just ask!
Featured Manufacturer:

We have a decades old relationship with our featured manufacturer, Pyromation.
If you are looking to purchase thermocouples or related products from produced by a different manufacturer, just let us know and we will source it for you.
