About Isotech

Isotech Temperature Calibration Equipment and Services

Isotech is a world leader in temperature metrology. With over 30 years experience in the design, manufacture and practical use of precision temperature calibration standards, Isotech is an experienced supplier for national labs and field calibration technicians world wide.

Metrology equipment produced includes, Thermometry Bridges, Standard Platinum Resistance Thermometers, fixed point cells and associated apparatus which are used in metrology laboratories throughout the world.

Industrial temperature calibration equipment includes portable dry block calibrators, liquid baths, furnaces, infrared calibrators and thermocouple referencing.

Isotech have complete calibration solutions; from metal block baths for calibrating thermocouples and RTDs, high accuracy liquid baths and furnaces to complete ITS-90 Primary Standards.

Isotech operate an Accredited laboratory (ISO/IEC 17025) with world leading uncertainties, smaller than many National Measurement Institutes. We also offer NIST Traceable calibrations from our USA based facility supporting the America's.

Customers include primary laboratories such as NIST & NRC, as well as accredited laboratories, defense organizations, pharmaceuticals, and Oil and Gas companies.

Should you not find the answer to your questions or the product detail you were looking for, please contact us, so we can better assist you.

Why Choose Isotech?

80% of the world relies upon Isotech for their National Standards, Shouldn't you?

  • Isotech manufacture the widest range of temperature calibration products on the market from hand held thermometers to Primary Standards, ensuring you have access to the right equipment for your application.

  • 100% Satisfaction Guaranteed!

  • Global Network with local support; Isotech has over 90 authorized sales agents worldwide! No matter where you are we can offer local support

  • Isotech have been pioneering the latest developments in Temperature Metrology for more than 30 years, and continue to develop the best temperature standards used by top calibration facilities.
FREE ITS-90 posters

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Simply signup for our Free email newsletter or follow us on your favorite social network and we will send you a free ITS-90 Wall poster.

Isotech newsletters are released 2 to 3 times per year and contain interesting technical articles and "how to" videos related to temperature calibration, as well as any new product announcements.

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Latest News
New Isotech ADVANCED ISOCAL 6 Range Provide Greater Accuracy and Additional Features for Industrial and laboratory Temperature Calibrations
May 2014

Isotech Advanced Series Isocal6 Dry & Wet Calibrators

Isotech have a new range of Dry Block Calibrators with more features than ever before – with up to three input channels, resolution to 0.001°C, logging, improved performance; Ethernet interface with new software, the list continues.

These new blocks with lighter, stronger cases use the latest technology to help users calibrate industrial sensors. The new ADVANCED models sit alongside the earlier BASIC and SITE models allowing users to select the model most suited to their individual needs.

Our portable calibrators have set a number of world firsts, the first Dry Blocks to feature an independent inbuilt temperate indicator and the first Dry Blocks to reach -100°C. The award winning ISOCAL-6 was the first calibrator, to offer both Dry Block and Liquid Bath use, and remains the only device to offer six modes of calibration




2014 International Agents Seminar - Southport UK
May 2014

Isotech 2014 International Seminar

Isotech has just held its 8th International Distributor conference which drew 50 visitors from 36 different countries. The three day event was a great success which combined the unveiling of a new range of temperature calibrators, training presentations, hands on training and a celebration of world metrology.

Isotech celebrated by inviting International visitors to an evening celebration where people brought cultural gifts from their own countries. Items ranged from crafts, musical instruments, local delicacies and drinks to souvenirs. Visitors explained about their countries while the Ramada Plaza provided an international buffet from fish, chips and mushy peas to Japanese delicacies.

Isotech waved the local flag providing a seaside theme complete with buckets and spades, not forgetting Southport Rock. Visitors were presented with a range of traditional British items from a china tea set to a signed Liverpool football while local musicians played sax and guitar.

The event was a great success and Isotech look forward to continuing to support the global need for temperature calibration and with a new range of products to ensure it remains a global leader



Isotech Catalog Downloads

New Quick Selection Guides and Catalog Updates
February 2014

For 2014 we have updated the catalogs and produced new publications, "Selection Guide for Thermometry Bridges and Precision Thermometers", "A Guide to Industrial Calibration" and "Selection Guide: Stirred Liquid Baths". They show the benefits of Isotech and how to avoid mistakes when selecting equipment.



New MilliK Channel Expander
March 2013

Isotech MilliK with new Milliskanner

Following the success of the highly accurate milliK Precision Thermometer Isotech are pleased to introduce the “millisKanner”. This eight channel device expands the milliK to create an innovative multi channel system that is unmatched in terms of accuracy and flexibility. Up to four millisKanners can be connected adding 32 expansion channels, each easily controlled from the milliK.

With accuracy to 3mK (0.003°C) and a resolution of 0.0001°C the system can be used with both laboratory and industrial types of standard thermometers, SPRT’s, PRT’s, Thermistors, Thermocouples. The milliK also supports 4-20mA Process Inputs, the ability to control Isotech Dry Blocks and Baths and virtually unlimited logging capacity.

It is also suited for both calibration laboratories and high accuracy measurements in industrial and scientific applications.




New Resistance Thermometry Bridges Provide Greater Accuracy and Additional Features for NMI Temperature Metrologists
September, 2011

Isotech MicroK Thermometry Bridge

The Isotech microK Thermometry Bridges have quickly established an excellent reputation for both measuring performance and innovation.

Customers include National Measurement Institutes (NMI’s), Research Organisations and Accredited Temperature Calibration Laboratories.

The complete range now include a GPIB IEEE interface as well as the earlier serial and USB interfaces, additionally the microK 70 and 125 have an Ethernet port and to allow monitoring and control from across a network.

The microK 70 and 125 are ideal for Primary Laboratories with a ratio accuracy of <0.02ppm, the microK 250 and 500 are ideal for Secondary Laboratory applications with an equivalent temperature accuracy to 0.06mK, 0.00006C.

As well as Standard Resistance Thermometers the microK range can make high accuracy measurements from Standard Thermocouples, measuring voltage to an accuracy of 250nV

Quite simply, no other Thermometry Bridge is available that can achieve such high accuracy SPRT measurements and support laboratory standard thermocouples.



Isotech TTI-10 Calibration Thermometer

New Product: TTI-10 Thermometer
August, 2011

The new TTI-10 is a high accuracy handheld temperature indicator with two platinum resistance thermometer inputs. The high precision makes the instrument particularly suitable as a portable reference thermometer to use alongside Isotech temperature calibrators such as the Fast-Cal, Isocal-6 and Dry Block ranges. It is also suited for high accuracy measurements in industrial and scientific applications.


Document Downloads

Looking for Manuals, Data Sheets, or How to Articles? Here is where your will find them...


Product Data Sheets

Isotech Data Sheets containing product specifications and general overview can be found by scrolling to the bottom on each individual product page, or clicking the "Downloads" tab on the product page


Manuals & Evaluation Reports

Isotech Product Manuals and Evaluation Reports are also located on the individual product pages, additionally there is an alphabetical list of product manuals in our "Tech Library" on the top navigation


Calibration Certificates

Looking for a past calibration certificate? Sign up for our free web certificate service and have access to all your past temperature calibration reports whenever you need them. Contact your Isotech representative to sign up.


Brochures & Catalogs

We have a number of publications available to help you select the calibration equipment for your application. You can download the main catalogs and brochures here, or give us a call and we can drop them in the mail to you. +1 (802) 863 8050

Volume 1: Solutions for Primary and Secondary Laboratories
  • ITS-90 Fixed Points
  • Thermometry Bridges and SPRTS
  • Liquid Calibration Baths
  • Metrology Furnaces
Volume 2: Calibration Solutions for Secondary and Industrial Labs
  • Temperature Sensors and Digital Thermometers
  • Dry Blocks and Liquid Baths
  • Infrared Thermometers
  • Thermocouple Referencing Systems
Isotech Product Guide Six Page Overview of Isotech's Products and Services
Isotech Thermometers and Bridges Selection Guide
Isotech Industrial Calibration Selection Guide
Isotech Stirred Liquid Bath Selection Guide



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