Type B thermocouples/RTDs are usually used in conjunction with display instruments, recording instruments, computers, etc. They are an essential tool for companies that require reliable temperature measurement in harsh industrial environments. They are typically paired with display instruments, recording devices, or computers to accurately measure the temperature of liquids, gases, and solid surfaces - from 0ºC all the way up to 1800ºC. This makes them ideal for extremely high temperature applications such as petroleum, chemical plants, machinery, metallurgy, power, textiles, food processing, atomic energy, aerospace, etc.
Our Type B thermocouples consist of two dissimilar metal wires (usually precious metals such as platinum and rhodium) that are connected at the hot junction. As the temperature changes, a millivolt signal is generated and converted into an accurate temperature reading.

Product Features
- Featuring a slender polished metal probe (usually stainless steel, SS321, SS316, or Inconel600), this thermocouple can withstand the highest temperature limits (up to 1800ºC) without losing accuracy. Its rugged construction (including secure metal joints and moisture-proof sealants on the lead ends) ensures long-term use in harsh industrial environments.
- With 0.5mm outer diameter (or custom to your specifications), single or dual sensing elements, and male or female connector options, we customize this product to your unique requirements. Whether you need a special design for complex machinery or an R-type or B-type metal configuration, we have what you need.
- The probe is attached to a rugged metal connector or fixture, extending into a flexible lead encased in a braided metal sheath for enhanced durability, interference resistance, and protection in harsh industrial conditions.
- Our B-type thermocouples meet ASTM E230 standard temperature tolerances and error limits to provide consistent, repeatable results. Color-coded positive wire and lead markings (yellow and red) make installation and maintenance simple, reducing downtime and ensuring compliance with industry standards.
- Fabricated thermocouples consist of a temperature sensing element, mounting fixture, and junction box. The design features a smooth, rounded probe tip and a secure metal connector, ideal for insertion into narrow or deep measurement points, ensuring stability and accuracy in corrosive or high-pressure environments.
In addition, we have types such as B, S, K and E to choose from, among which type B is specially designed for extreme temperature applications.
Why Choose SUWAIE for Your Type B Thermocouple Needs?
At SUWAIE, we're more than just a supplier, we're your partner in precision heating solutions. As a manufacturer and supplier of electric heating elements and industrial heaters since 2007, we integrate development, design, production, sales, and service to deliver top-quality products worldwide. With over 300 employees, 50+ senior engineers, and 20+ quality inspection professionals, we're equipped to handle even the most demanding projects. Our principle of "honoring contracts and providing excellent services" has made us a trusted name in optical communications, sensors, automotive, aviation, and beyond.

Ready to boost your operation's reliability and efficiency? Get a customized Type B Thermocouple solution, whether you need OEM, ODM, or a special configuration. Reach out now to discuss your needs or request a quote, and experience the SUWAIE difference!
FAQ
Can I get a Type B Thermocouple with a different lead wire length?
Yes! We offer customizable lead wire lengths, including options beyond the standard 6 ft., to fit your specific setup. Just let us know your requirements, and our team will tailor the product for you.
What if I need help installing or troubleshooting the thermocouple?
We provide comprehensive support, including installation guidance and troubleshooting assistance, to ensure your Type B Thermocouple performs. Our team of engineers is here to help every step of the way.
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