1. Althen Controls
  2. Linear & rotary position sensors
  3. Linear position sensors
  4. Draw-wire sensors
  5. SM series Draw-wire sensors (String pot)
  • SM1 string potentiometer (SM series)

SM series Draw-wire sensors (String pot)

Its ultra-compact design is the perfect solution when tight space is an issue


Key features

  • Compact design
  • M12 connection
  • Adjustable mounting bracket
  • Free-release tolerant
  • Custom configurations for OEMs
  • Voltage divider (potentiometric)

About the SM series draw-wire sensors

The SM series string pot offers an ultra-compact design that is the perfect solution when tight space is an issue. At just a little over an inch across, these miniature draw-wire sensors offer full stroke measurement ranges from 2½ to 25 inches. Rugged polycarbonate enclosure and free-release tolerant.

In the SM2 miniature string pot a precision plastic hybrid 10K-ohm potentiometer delivers a voltage divider output signal that is linearly proportional to the travel of the spring-loaded measuring cable.

Applications for these string pots

  • Factory automation
  • Light industrial
  • Seismic testing
  • Racing instrumentation
  • Medical imaging systems
  • Fume hood position

Do you need this product for your next project?

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Have it your way

Not exactly what you’re looking for? We offer standard products, but can also help you with a tailor-made or fully customized solution. Please contact us for advice or budgetary pricing.

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Technical Specifications

Specification Value
Accuracy ±0.25% to ±1%
Dimensions (mm.) 120 x 140 x 140 mm.
Housing material Polycarbonate with stainless steel bracket
IP rating IP50, IP51
Measuring cable Nylon-coated stainless steel
Operating temperature -40°C to 70°C
Range 63.5 - 635 mm.