Linear Position Measuring

Linear position measuring sensors provide absolute or incremental position feedback for hydraulic and pneumatic cylinders, machine tool slides, robotic axes, and process valve actuators. They use a range of technologies — magnetostrictive (Temposonics-style), LVDT, draw-wire, optical, and magnetic — each suited to different stroke lengths and environments.

Enicstra stocks linear position sensors from MTS (Temposonics), Balluff, SICK, Heidenhain, Gefran, and similar manufacturers. Inventory includes redundant outputs for safety applications, sensors with integrated SSI/CANopen interfaces, and legacy models still required for installed equipment. Every sensor is bench-tested for output linearity and range, and ships with our 12-month functional warranty.

If you need a specific linear position sensor that isn't listed — or are replacing a discontinued model — send the OEM part number along with the stroke length and output signal type. Most quote inquiries reply within 1–2 business days.

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Linear Position Measuring

Pepperl+Fuchs PMI120-F90-IU-V1 Inductive Linear Positioning System

MFR #: PMI120-F90-IU-V1

$377.05/ea ✓ In Stock

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Buying guide

Choosing Linear Position Measuring components

Linear position sensor selection starts with the stroke length and accuracy needed, then narrows by the sensing technology that fits your environment and budget. The same stroke length can be measured by four or five different technologies — each with trade-offs in cost, durability, and integration.

Specifications to confirm before ordering:

Stroke length (the measurement range needed)
Required accuracy and resolution
Output signal — analog (0–10 V, 4–20 mA), digital (SSI, CANopen, Profibus, IO-Link), or pulse
Mounting — in-cylinder, profile mount, external rod, draw-wire
Operating environment (oil immersion, washdown, vibration, temperature)
Redundancy requirements (functional safety SIL rating)
Power supply (typically 24 VDC, some loop-powered options)
Cable termination and connector type

Technology selection guidance:

Magnetostrictive (Temposonics-style): in-cylinder mounting, oil-immersed, durable, stroke lengths to several meters
LVDT: high precision over short strokes (millimeters to ~250 mm), excellent in harsh environments
Draw-wire: long strokes (meters), low cost, vulnerable to wire damage
Linear encoders (optical/magnetic): highest accuracy for machine tool axes, indoor environments
Resistive linear potentiometer: low cost, lower accuracy, suitable for non-critical applications

For functional safety applications (PLd, PLe, SIL 2, SIL 3), specify sensors with dual independent outputs — single-output sensors cannot meet the diagnostic coverage requirements regardless of intrinsic accuracy.

Related categories Frequently asked questions

Can you supply obsolete MTS Temposonics or Balluff Micropulse sensors?

Yes — legacy magnetostrictive position sensors are some of our most common requests. Older Temposonics R-Series, BTL-series Balluff sensors, and Gefran linear sensors are typically available through our supplier network. Submit the part number for a quote.

Magnetostrictive vs LVDT vs draw-wire — which one?

Magnetostrictive is the standard for in-cylinder mounting and strokes from 100 mm to 7 m. LVDT excels at short-stroke, high-accuracy applications in harsh environments. Draw-wire is the cheapest for long strokes (multiple meters) but the wire is vulnerable. Send your application and we'll recommend a technology.

Does the sensor come with the magnet (for magnetostrictive)?

Not always. The magnet is sometimes a separate part, sized to the sensor's rod diameter and stroke. If you're replacing only the sensing element, the original magnet usually stays in place. Confirm what's included on the product page.

Are these new, surplus, or used?

Most stock is new-old-stock — unused, often in original packaging. Some legacy sensors come from tested system removals. Each product page lists condition where known.

What about safety-rated linear sensors?

For PLd, PLe, SIL 2, or SIL 3 applications, you need sensors with dual independent outputs and matching safety controller. We stock several certified options; send your required safety category when requesting a quote.