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About us

Why choose DJB?

We design, manufacture, assemble, test and calibrate every part of our products all in-house. We export all over the world via a network of distributors

We have been a British leader and manufacturer for over 40 years, proudly achieving a substantial range of quality accelerometers and vibration testing equipment whilst maintaining the unique Konic Shear design introduced by the company’s founder Don Birchall to better aid your needs.  We all have a care for the work we do at DJB, proud of its history and keen for its future. This is reflected in the products we have available and the services provided to support you in your testing needs all the way through your process. The company’s main focus is to manufacture piezoelectric accelerometers (IEPE and Charge), dynamic pressure transducers and analogue signal processing instrumentation for engineers working in the areas stated below.

Big enough to meet your needs. Personal enough to care.

We are responsive to requests for bespoke sensor/cable products, as a manufacturer it is easy for us to provide prototypes  and final products to suit any customer application.

Don Mug Shot Neill

Technical Support

There is a whole lot more than just supplying an accelerometer to an enquiry made. We offer technical advice to ensure the correct products are being used to best fit within your current set up as well as being available during your testing to all members of your team to aid peak performance of the product and therefore your readings. We have Data sheets, technical detail and a growing video library to aid your work as well as being available over the phone or email should you need. Contact us, let us know what you are testing and what end result you are aiming for.

Training Neill


We offer courses previously presented at a number of National and International events as well as on site with major Automotive,Aerospace/Defence and Electronics companies all of whom have provided positive feedback about the course benefits and have reported process improvements as a result of attending.

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Cable Repair

DJB offers a specialist service all based in-house to ensure your readings remain accurate with a clean bill of health on each cable you use. Give us a ring or send in an enquiry to see how we can best help.

Calibration Neill


This is your opportunity to check accelerometers for correct operation and to ensure it has suffered no damage in its day to day handling and use.

Please contact us for a quotation and turnaround time. Our calibration service is usually between 1 to 3 days with a full report on each device.

Mug Shot Research Neill

Research and Design

Our program of constant development ensures products meet the latest customer requirements. Our range of products now extends across all accelerometer types including IEPE (Voltage) output with market leading high temperature IEPE accelerometer solutions up to 900°C. 

Keep up to date with the latest developments by joining our monthly newsletter. Keep up to date with the latest developments by joining our monthly newsletter.

A little of our history...

DJB Instruments UK Ltd has been manufacturing accelerometers, cables, instrumentation and accessories for over 40 years. Originally established as DJ Birchall Ltd in 1974, it changed name in 2010 after the death of the company’s founder, Don Birchall. After some major restructuring and re-investment, the company enjoyed a period of expansion with international aspirations. In 2021, DJB Instruments became part of Condition Monitoring Group (CMG) Ltd bringing a new level of growth potential within a global engineering organisation.

DJB is proud to uphold the traditions of quality British manufacturing that has been admired for so long around the world and also maintains the fundamental engineering innovation that Don Birchall was well renowned for. Still the only global accelerometer manufacturer using the Konic Shear design patented by Don and offering significant improvements in performance and cross axis reduction, it continues future innovation through CMG group collaborations, joint academic research programs and internal material developments.

Here's a video to show a little of what we are about