How can we help? +44 (0)1704 543830 |

Unmatched Precision in Every Measurement

High accuracy temperature calibration and measurement are crucial in today’s demanding industrial environments. Even the slightest temperature deviation can disrupt your entire operation, leading to wasted products, compromised quality, and potential safety risks.

Isotech empowers you to achieve unwavering control with pioneering solutions for high-accuracy temperature measurement within ±0.01°C.  Take control of your temperature with our industry-leading calibration and measurement instruments, including the flagship 4000 series dry block calibrators also known as dry well calibrators, the user-friendly milliK thermometers, and the versatile TTI-10 dry-block high accuracy handheld thermometer. Our team of experts are here to recommend the perfect solution for your specific needs.


Flagship 4000 Series Dry Block Calibrators

-100°C TO 1200°C temperature range

Setting the standard delivering precision and versatility for even the most demanding temperature calibration needs. Featuring multiple temperature ranges, exceptional stability, and the ability to accommodate both the test thermometer and a calibrated standard.

View products

milliK Precision Thermometer

-270°C to 1820°C temperature range

The milliK Precision Thermometer from Isotech sets a new standard for high-accuracy measurement and calibration over the range -of 270°C to 1820°C.

View products

TTI-10 High Accuracy Handheld Thermometer

High Resolution, to 0.001°C

TTI-10 brings laboratory-level performance of up to 10mK (0.01°C) and resolution of up to 0.001°C in a portable handheld instrument.

View products

Explore our product portfolio

Award winning products

Explore the extensive Isotech highly-accurate product portfolio to discover the perfect fit for your specific application.

View products

For over 40 years, Isotech has provided high-accuracy temperature measurement and calibration solutions to a wide range of industries. From industry leaders like Rolls-Royce to the US Navy, we empower businesses with the tools and expertise they need for optimal temperature control and operational success.

Explore how Isotech caters to your specific industry:


Data LoggingHealthcare
Energy ServicesManufacturing
Engineering & ConstructionPharmaceuticals
Food & BeveragePower & Utilities

As a leading thermocouple manufacturer, it’s crucial for us to check with the utmost precision. Isotech equipment consistently provides the accurate measurements we rely on. We’ve partnered with Isotech for over 30 years, appreciating not just their high-accuracy products but also their exceptional customer service, insightful advice, and genuine feedback.

Stephen Holt, Technical & Quality Manager, Scott Precision Wire Ltd

Why Isotech?

Isotech sets the standard for industrial calibration, delivering an unparalleled experience for your temperature control needs.  We offer a comprehensive portfolio, from calibrating a single thermocouple on-site to supporting national laboratories in maintaining their primary standards.

Our Expertise Covers All Your Needs:

  • World leading ISO 17025 Calibration Services – we can calibrate all you standards in our accredited laboratory.
  • With an extensive network of sales experts worldwide, we’re here to provide solutions wherever you operate.
  • Comprehensive service provision, including installation, training, and maintenance to provide holistic support.
  • Unparalleled customer service from our range of experts and client liaison teams.


Do you have any questions?

Or is there anything else we can help you with?

  • We are online and ready to chat to you if you need any advice and support, or if you prefer you can fill out the form below.

    Chat Now
youtube linkedin