
posiwire Cable-Extension Position Sensors
ASM posiwire draw-wire sensors measure linear position and displacement over long ranges using a flexible measuring cable wound on a precision drum, packaged in a compact housing.

posiwire cable-extension position sensors are ASM's flagship product family. A flexible stainless-steel measuring cable extends from a spring-loaded drum, and the rotation of the drum is converted into an electrical signal proportional to the cable extension — giving accurate linear position measurement over ranges from a few centimetres up to many metres while keeping the sensor body small.
The range covers a wide choice of measuring lengths, accuracy classes, output signals and housing materials, allowing the same proven principle to be applied from compact automation tasks through to long-travel mobile and industrial machinery.
- Long linear measuring ranges from a compact housing
- Wide choice of output signals — analogue (voltage/current), incremental, SSI, CANopen and other interfaces
- Flexible stainless-steel measuring cable for easy mechanical integration
- Rugged, often IP-rated housings for industrial and outdoor use
- Good accuracy, linearity and repeatability across the measuring range
- Industrial automation and machine building
- Hydraulic cylinder and actuator position feedback
- Mobile machinery and material handling
- Lifting, telescopic and stroke measurement
- Test rigs and laboratory displacement measurement
Explore other ASM product lines

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Non-contact, wear-free linear position sensors that determine the absolute position of a moving magnet along a sensing rod or profile.
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Magnetic Non-Contact Position Sensors
Encoder-style magnetic sensors that read a magnetic scale or tape to provide linear or rotary position without mechanical contact.
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Inclination Sensors (Inclinometers)
posireverse and related inclination sensors measure tilt angle relative to gravity in one or two axes for levelling, alignment and safety functions.
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Angle / Rotary Position Sensors
Sensors for measuring rotary position and angular displacement of shafts and rotating assemblies.
View Details →Request ASMposiwire Cable-Extension Position Sensors
Contact our team for genuine ASMposiwire cable-extension position sensors with full technical support and accredited calibration across the UAE.