Delta-T Devices

Cambridge based Delta-T Devices has been at the forefront of environmental science measurement technology for five decades.

Since our inception we have gained a strong global reputation for innovative high performance sensors – and our in-house R&D team frequently collaborates with leading academic institutes to develop exciting new technologies.

The expertise and knowledge we have amassed in over 50 years of product design and manufacture means that customers can have high levels of trust in our instruments and advice. Many of our products are still being used in long-term research projects and monitoring applications decades after purchase.

A key strength of Delta-T Devices is our emphasis on high quality after-sales care, and our dedicated technical support team enjoy assisting with any issues that may arise. Their attentiveness and willingness to go the extra mile means that a high percentage of our business is generated by return customers.

Our company aim is to continue to supply scientists and growers with the accurate and reliable instruments they need to help address the major environmental issues challenging our world.


Delta-T Devices and Sustainability

Delta-T Devices is serious about sustainability. We have a dedicated environmental team within the company that meets frequently, and which oversees this crucial side of our business. Aside from seeking best practice within our own company, we are also an enabling force in the outside world – as the technology we develop is routinely used in leading climate change, food security and irrigation research.

Measures we are taking:

  • Implementing new, more sustainable, packaging technologies.
  • Provision for agile working, where practical for a manufacturing company.
  • Recycling of 80% of our waste – with a long-term plan for achieving zero landfill.
  • Provision of dedicated teleconferencing facilities to reduce long distance/air travel.
  • Producing products that are designed for optimal durability – many of our instruments are guaranteed for 5 years and are designed to be recyclable at end of life.
  • Expanding our premises, wherever possible, by careful restoration of old buildings at our site (under guidance from relevant authorities).
  • Heating and cooling our premises via heat pumps – using 100% renewable electricity.
  • Insulating our buildings to a very high standard.

In addition to the above measures, we invest in carbon reduction projects at a level that substantially compensates against our hard-to-abate calculated carbon footprint. This annual investment is split evenly between a set of international projects (including The Guatemalan Conservation Coast Project, Nii Kaniti Project, Forestel el Arriero Project and Cochabamba Project) achieving immediate verified emission reductions, whilst also supporting leading UK-based peatland restoration projects at Gameshope Loch (2022-2023) and Cùl Mòr in the Scottish Highlands (current) – delivering future carbon savings.


Delta-T Devices is a co-operative company, owned and managed by the members who work within it. Co-operative working creates a highly professional environment and Delta-T Devices staff share a high level of commitment to the company and our customers.

mcl-04-02-2014-13-26-47For further information about the principles that underpin co-operative enterprises please visit the web site of the International Co-operative Alliance.

High Quality Products

Delta-T Devices instruments measure and record fundamental variables needed by scientists and engineers. Our policy is to continually improve and extend the capabilities of those instruments, using the most up to date theory and technologies.

Our experienced development team achieves a high rate of design innovation. Some projects are completely in-house, but others take the form of collaborative projects with leading institutions in many countries.

ISO 9001 – Quality Management Systems Certified

Delta-T Devices is proud to have achieved ISO 9001 certification. Awarded to Delta-T Devices in August 2011. ISO 9001 is an international standard in use worldwide as a benchmark for quality. The award is gained through frequent and thorough assessment of our quality management systems by the highly respected British Standards Institution (BSI).

View our ISO 9001 Certificate

If you would like a copy of the Delta-T Devices quality policy (which includes full details of our quality systems) please email


Delta-T Devices has retained thousands of loyal customers all over the world who value the reliability, performance and long-term service that we provide. Their feed-back is incorporated into many product designs to create a process of continuous improvement.

Overseas Representation

Delta-T Devices has an international network of representatives who can provide local sales and service in most countries. Export sales account for more than 75% of Delta-T Devices’s business and we pride ourselves on the high standard of support given to our overseas customers.

Complete Systems

Our capabilities go beyond straight-forward instrument sales – we can also supply whole systems, including computers if required. Typical examples are automatic weather stations and logging systems for multi-point soil moisture measurement.

Policy Statement

We have adopted the following statement to explain our sales policy: “We aim to manufacture and sell instruments for use in work beneficial to the environment and directly related to human and animal welfare. As a matter of conscience, we reserve the right not to sell our instruments to people or institutions involved in military work, tobacco research, environmentally destructive practices and factory farming.”

Legal and Financial

Trading name: Delta-T Devices Ltd
Registration number: 22804R
Country of Registration: England
Registered Office: 130 Low Road, Burwell, Cambridge, CB25 0EJ, UK
VAT Number: GB 368361332

Delta-T Devices Ltd is a workers’ co-operative, registered with limited liability under the Industrial and Provident Societies Acts (IPSA). Please note that societies registered under the IPSA are administered by the Financial Conduct Authority (FCA) and not by Companies House. Delta-T Devices Mutuals Public Register Number is 22804R. On the FCA web site, Delta-T Devices is included in the Mutuals Register. For further information about the FCA Mutuals Public Register please see

Financial Conduct Authority
12 Endeavour Square
London E20 1JN

Telephone: (+44) 20 7066 1000

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