With 30 years of torque, power measurement and equipment manufacturing expertise Datum Electronics provides both industry standard off the shelf solutions, in addition to tailor-made systems and products, which can be manufactured to our customer’s specifications, including OEM transducers and solutions in medium to high volume.

Using the very latest cutting-edge technology, we design and manufacture a range of rotary and static torque sensors, ideal for a wide range of industrial applications, looking to measure torque and power (with options for Thrust & Bending etc. if required). The innovative 425 Series represents the entire spectrum of mechanical coupling configurations, including standard off-the-shelf models, including shaft to shaft, flange, keyway, existing converted shaft components, OEM and other bespoke solutions.

  • High Accuracy, Quality Products Available Off-the-Shelf
  • Leading-Edge Technology
  • Simple Installation
  • Torque Ranges have been supplied Up to 14MNm (with larger in current production)
  • Short Lead Times
  • Competitive Pricing
  • Worldwide distribution network

M425 Rotary Torque Sensor

The industry standard, Datum Electronics Series M425 non-contact Torque Sensor range has been designed to fit with most general applications and solutions requiring rotary torque and power measurement. Static torque can also be measured.

Covering an extensive measurement range, with high accuracy and precision, the M425 torque sensor is an ideal solution for anyone looking to measure torque on a rotating system, such as an engine test rig, a drive line, transmission or pump, in real time.

We appreciate that customers may want to configure their own transducer so we include, as standard, configuration software, which will also display and log data for you. You can be up and running in minutes!

m425 size3 rotary torque transducer
  • Variety of sample rate options available
  • High Accuracy & Repeatability
  • Industry standard for rig applications
  • Extensive range of Torque: 10Nm – 60kNm
  • Variety of digital and analogue output options, including display
  • Available on short lead times


FF425 Flange to Flange Torque Sensor

Do you need to mechanically attach your transducer in-line using flanges? No problem, our Series FF425 Series will do the job! FF425 Torque Transducers with flange couplings at either end have been designed to fit easily into most drive trains, reducing the cost of installation.

torque sensor 200nm ff425 1
  • Flange couplings at either end
  • Ideal design for easy fitting to drive systems
  • Configurable sample rates
  • Rotary Speeds up to 20,000 rpm
  • Standard, Off the shelf, range up to 30kNm
  • Bespoke Range to 14MNm and larger

We have built transducers to 14MNm for the FF425 design including the world’s largest torque and shaft power transducer, weighing over 5 tonnes.

RS425 Torque Sensor
(With Completely Separate Rotor and Stator)

Not enough room to fit a transducer in-line? Do you have shaft alignment concerns? Do you expect higher rpms? Our Series RS425 Series Completely Contactless Torque Sensors with shaft connections at either end, have been designed to fit directly into most drive shafts/trains, reducing the cost of installation.

Combining the latest electronics and technology from the M425 range with high torsional stiffness, RS425 Sensor provides a reliable and highly accurate torque measurement solution or many practical applications, such as transmissions, powertrains, wind generators, gas turbines, and many more.

rs425 1000nm torque transducer torque sensor
  • Completely Bearing-less Design
  • Configurable Sample Rates
  • Can Be Built to Customer Specs and OEM versions
  • Higher RPMs available
  • Standard Range from 100 to 30kNm
  • Bespoke Range to 14MNm

Covering an extensive torque range as standard from 0-10Nm to 60kNm, the 425 Series transducers are easy-to-install and can operate in challenging environments, providing you with data accuracy of better than 0.1% error and high resolution (up to 24 bit). We supply transducers, which can measure from 3Nm, up to 14MNm, recently supplied to our satisfied customer.

Complete Torque Sensor Measurement Solution

datum universal torque transducer interface web

All torque transducers are supplied with free simple to use utility and display software and come complete with a certificate of calibration, valid for 12 months. In addition, 425 Series Torque Sensors are compatible with our Datum Universal interface, including built-in display, giving real-time data, with additional analogue and serial data, USB, and Ethernet outputs, if required.

Designed and built with reliability and repeatability in mind, the Datum 425 Series Torque sensors range is the 1st choice for validating product performance and optimising efficiency.

Datum Electronics Ltd. specialises in the design and manufacture of torque & shaft power transducers and measurement systems.  We also offer services such as installation and service of our products and solutions worldwide.

For more information about Datum Electronics and our products, give us a call on  +44 (0) 1983 282834 or email us at web@datum-electronics.co.uk

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