PT9 Series Draw-Wire Sensors | String Pot

Heavy duty, submersible string potentiometers for use in harsh environments and demanding long-range applications up to 1700 inches

PT9 Series Draw-Wire Sensors | String Pot | Althen Sensors

Features PT9 Series Draw-Wire Sensors

  • Heavy duty, submersible
  • Proven workhorse for long stroke applications
  • Designed for extreme industrial and marine environments
  • CSA, CENELEC certification for hazardous area applications

Applications for PT9 PT9 Series Draw-Wire Sensors

  • Mobile hydraulic boom position
  • Water resource management
  • Mining and tunnel boring equipment
  • Telescoping mechanism position
  • Theatre stage control


  • Voltage divider (potentiometric)
  • 0-10VDC, 0-5VDC
  • 4-20mA feedback signal
  • Incremental/absolute encoder
  • CANbus communication
  • DeviceNET communication
  • RS232 serial communication
  • Free-release proof with VLS (Velocity Limiting System) option
  • M12 and DEUTSCH connector options
  • Reduced cable opening down to singlepoint exit to block most debris from entering the cable-reel area
  • Position/velocity transducer combination for linear position measurements up to 1700 inches


0 to 1700 inches
±0.04% to ±0.25%
IP rating
IP67, IP68
Operating temperature
-40°C to 90°C
Dimensions (mm)
200 x 135 x 125
Measuring cable
All plastic, bare stainless steel, nylon-coated stainless steel
Housing material
Aluminum, stainless steel
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