Magnetic Extensometer Readout Probe


Magnetic Extensometer Readout Probe

The Model 9200 Magnetic Extensometer Readout Unit consists of a 13mm diameter reed switch probe on a semi rigid installation rod. A simple, easy-to-use instrument for vertical settlement magnetic extensometer installations. Portable (on a plastic reel), with audible and visual magnetic field indication. Available in 10m, 30m, 50m, 100m, 200m or 300m lengths. Use with Model 4700 magnetic probe anchors.


To read magnetic extensometers associated with:

  • Subsidence monitoring
  • Consolidation works
  • Construction settlement


  • Audible and visual magnetic system
  • Compact and easy to carry
  • Easy to use


  • Tape length: 10m, 30m, 50m, 100m, 200m or 300m
  • Accuracy: ±1 mm
  • Dimension: 280mm x 220mm wide
  • Weight: Up to 8kg for 300m range magnetic extensometer readout unit

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