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LVIT Sensor LRS-18 Series

Image LRS-18

The LRS-18 series of LVIT (Linear Variable Inductance Transducer) spring loaded position sensors by Alliance Sensors Group are contactless devices designed for dimension or position measuring applications in factory automation and in various industrial and commercial applications such as automotive testing, mil/aero test stands, robotic arms, and packaging equipment, where the sensing element cannot be attached to the object being measured.

LRS-18s are offered in full scale ranges from 12.5 to 100 mm (0.5 to 4.0 inches) with excellent resolution and high stroke-to-body-length ratios. The maximum tip force on the item being measured is 1 pound.

LRS-18 sensors have a 19 mm (0.75 inch) diameter aluminum or stainless steel body with an M18 x 1 thread and come with two hex jam nuts for easy installation in place of an 18 mm analog prox sensor. These sensors use a 0.25 inch diameter probe equipped with an AGD No. 9 contact tip, and are offered with either an axial cable or a connector.

Operating from a variety of DC voltages, the sensors are available with a choice of four analog outputs and they all include ASG’s proprietary SenSet field calibration feature. For more information, see the technical data sheet below.


  • Spring loaded LVIT Technology (Linear Variable Inductance Transducer)
  • Contactless operation
  • Excellent stroke-to-body-length ratio
  • Proprietary SenSet field adjustable range scaling


  • Industrial Fluid Power Equipment
  • Steel, Aluminum, and Paper Mills
  • Steam and Hydro Power Plants
  • Factory Automation Systems

Demonstration video


Order information

Electrical Termination
Series Output Housing
Range (mm) Axial or Radial Termination Output Housing Material
E- voltage 18- M18 013 (12.7 mm) A- Axial 00- 1 m cable 05- 0.5-4.5 VDC A- Aluminum
I- current 025 01- 5-pin M-12 06- 4.5-0.5 VDC S- 300 Series SS
050 02- 6-pin PT02 10- 0-10 VDC
075 03- 3 m cable 11- 10-0 VDC
100 20- 4-20 mA
21- 20-4 mA
50- 0-5 VDC
51- 5-0 VDC