M425 Non-Contact Rotary Torque Sensor
Using a highly-accurate non-contact technique, the Datum M425 Rotary Torque Transducer and Torque Meter represent an ultimate torque sensor for anyone looking to measure torque, power, and speed with high accuracy and repeatability.
The M425 rotating torque sensors give the customer control over their tests with torque sample rates selectable at any time from 1sps up to 4,000sps as standard.
M425 Rotary Torque Transducer Range
Why we think this is the best torque sensor on the market?
Firstly, the M425 Torque Sensors have 14 standard torque ranges, covering from 3 Nm to 60,000 Nm.
Having a rotating torque measurement design with an optimum length to maximise overall accuracy and give a high degree of tolerance to mounting offset, the M425 digital torque sensor is ideal for most general test rig applications, like electric motor testing, pump torque testing, gearbox testing (to name just a few).
Torque Sensor Size | 1 | 2 | 3 | 4 | 5 | 6 |
Torque Sensor Range: A | 0-10Nm | 0-250Nm | 0-1,000Nm | 0-5,000Nm | 0-15,000Nm | 0-30,000Nm |
Torque Sensor Range: B | 0-20Nm | 0-500Nm | 0-2,000Nm | 0-10,000Nm | 0-20,000Nm | 0-60,000Nm |
Torque Sensor Range: C | 0-50Nm | |||||
Torque Sensor Range: D | 0-100Nm | |||||
Max Shaft Speed (rpm) | 0-10,000 | 0-8,000 | 0-6,000 | 0-3,500 | 0-2,000 | 0-2000 |
M425 Torque Sensor Features:
- Accuracy: 0.1%
- Non-Linearity: 0.1%
- Repeatability: 0.05%
- Sample Rate: 1 to 4000 samples per second
- Serial Torque Outputs: SCADA outputs, including RS485, RS232, Ethernet, Modbus UPD, USB Logging
- Analogue Torque Outputs: 4-20mA configured 4-20mA (4-12-20mA): +/-10Vdc, +/-5Vdc, 0-10Vdc or 0-5Vdc
- Operating Range: -10 to +70˚C
- Environmental Protection: IP54 (see our high-speed RS425 Torque Sensor for IP67/68)
- Power Supply: 10-24Vdc 250mA
M425 Torque Transducer for Rotating Torque Measurement
Secondly, non-contact rotary Torque Sensors from Datum Electronics have been designed to fit with almost any application, where accurate rotary torque and power measurements are required. Therefore, the M425 Rotary Torque Sensor is mounted in line with the drive train or test bed, using standard keyway shaft connections.
A non-contact torque sensor features a non-contact transmission system, that provides data directly proportional to torque. It means that the torque sensor is supplied as a complete torque transducer with bearings to support the stator unit on the rotating shaft, making it an ideal choice for most general test rig applications.

The Ultimate Torque Sensing Solution
The DUI has 4 programmable analogue channels, that can be chosen from 0-20mA, 4-20mA, +/-10Vdc, +/-5Vdc, 0-10Vdc, 0-5Vdc for the output of torque, rpm and shaft power, etc. Using the DUI, an M425 rotating torque sensor becomes the simplest choice for anyone, looking to use a precise torque, speed, and power measurement system.
M425 Series Torque Sensor Range
Alternatively, get in touch with our team to discuss your requirements and find the most cost-effective solution for your application.
for quotations for Torque Sensors, Torque Transducers, and Torque Meters.