Skip to content

958A Embedded Rod Style Linear Position Sensor

GEMCO® 958 Series Embedded Linear Displacement Transducer (LDT) – Rugged, Reliable Position Feedback for Mobile Hydraulics

The GEMCO® 958 Series Embedded Linear Displacement Transducer (LDT) is engineered to deliver absolute, high-resolution position feedback in the harshest mobile hydraulic environments. Designed to meet demanding industrial and off-highway requirements, this rugged sensor excels in both performance and durability—making it an ideal solution for cylinder position sensing in applications where reliability and accuracy are critical.

Key Performance Features:

  • Magnetostrictive Position-Sensing Technology – Delivers absolute position feedback with precision repeatability and 16-bit resolution.

  • Wide Analog Output Support – Available with 0-10 VDC, 0-5 VDC, 0.25-4.75 VDC, 0.5-4.5 VDC, or 4-20 mA outputs.

  • Extreme Durability – Withstands shock up to 1000 Gs and vibration up to 30 Gs (lab tested).

  • Environmental ProtectionIP68-rated housing resists dust, water, and contaminants.

  • Wide Operating Range – Supports input voltages from 8–30 VDC and temperature ranges from -40°C to 105°C.

  • Built-In Diagnostics – Includes programmable zero and span for custom tuning and system flexibility.

  • Sensor lengths available up to 100 inches with multiple connector configurations.

The 958 Series LDT is easy to install and features automatic gain circuitry for reliable performance even in systems exposed to electrical noise or variable operating conditions. Designed for embedded use in hydraulic cylinders, the 958 is widely trusted across mobile equipment, construction, agriculture, energy, and heavy industrial machinery.

  • Models +

    • 958A Series, High Resolution Blok (Analog Output)
      • The 958A was designed with mobile hydraulics market in mind. The 958A is a rugged, accurate, programmable zero & span, auto-tuning, non-contact linear displacement transducer in a compact embedded rod-style package. The embedded package style allows the unit to be totally installed inside of a hydraulic cylinder, thus protecting the transducer from outside conditions. The transducer utilizes our field-proven Magnetostrictive technology to give absolute analog position, accurate to 0.04% of the programmable sensing distance. A variety of different analog outputs are available to meet your needs. All units have diagnostic built into the analog output to display the health of the unit and to help aid in troubleshooting. Units can be ordered in span lengths from 2” (50mm) to 100” (2540mm).
  • Documentation +

  • Application Notes +

    • Embedded Linear Transducers

      This rugged, accurate, programmable (zero & span), auto-tuning, non-contact linear displacement transducer in a compact embedded rod-style package.

  • Video +

    ProductVideoMessage

  • Accessories +

    • 958A Standard 4 Hole Magnet
      • Part No.: SD0400800
    • 958A Stainless Steel Standard 4 Hole Magnet
      • Part No.: SD0480900
    • 958A Non-Ferrous Spacer for 4 Hole Magnet
      • Part No.: M0822400
    • 958A Non-Ferrous Spacer for 4 Hole Magnet (Teflon Cylinder Bushing)
      • Part No.: M0822401
    • 958A Standard 1" Cylinder Magnet
      • Part No.: SD0410300
    • 958A Standard 1" Cylinder Magnet (Teflon Coated)
      • Part No.: SD0410301
    • 958A 17.4 mm Cylinder Magnet
      • Part No: 04-588105
    • 958A Straight Connector Cable Assembly (2 meter)
      • Part No: 949045L2M
    • 958A Straight Connector Cable Assembly (5 meter)
      • Part No: 949045L5M
    • 958A Straight Connector Cable Assembly (10 meter)
      • Part No: 949045L10M
    • 958A Right Angle Connector Cable Assembly (2 meter)
      • Part No: 949046L2M
    • 958A Right Angle Connector Cable Assembly (5 meter)
      • Part No: 949046L5M
    • 958A Right Angle Connector Cable Assembly (10 meter)
      • Part No: 949046L10M