Integrated radar measurement sensor

Leslah Garland 23 February 2026  

Leggett & Platt Hydraulics, a division of Leggett & Platt, has announced the launch of the new Integrated Radar Measurement Sensor from Pacoma Hydraulic Technology.

The company says this groundbreaking, linear-position sensor is mounted inside the cylinder cap and designed for direct stroke measurement of hydraulic cylinders. The new IRM position sensor is a contactless time-of-flight radar system that does not require a piston-mounted internal magnet or gun drilling of the cylinder rod. The field-serviceable sensor features a compact design, enabling sensor replacement without breaking into the hydraulic system. A single sensor can measure multiple cylinder strokes, resulting in reduced part inventory (no stocking of different lengths).

Engineered to exceed the most stringent of environmental, electrical, and electromagnetic compatibility requirements, the IRM sensor can ensure long-term reliability in demanding environments – including construction, material handling, agriculture, utility vehicles, and industrial equipment.

The IRM sensor can be powered directly from 12 and 24 VDC battery systems and is available with M12 and DT-compatible connectors. Analogue voltage output, digital PWM, and J1939 CANbus communications are available as well.

When coupled with a high-quality Pacoma or Precision hydraulic cylinder, the Smart IRM cylinder provides plug-and-play capabilities and allows seamless integration with existing systems without major software changes. With virtually no dead zone, the IRM sensor can be integrated into a hydraulic cylinder without increasing the overall length.

The Smart IRM cylinder is designed for applications such as lift, tilt, and steering cylinders. Options also include stabilizer, extension, side shift, and locking cylinders.