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Displacement Transducers

Deformation Meters (VW) | Model 4430

  • Model 4430 Deformation Meter.
  • Model 4430 Vibrating Wire Deformation Meter with hydraulic anchors.
  • Model 4430 dimensions.
  • Series of Model 4430 Deformation Meters, installed as an incremental extensometer.
  • Typical Model 4430 installation.
Model 4430

The Model 4430 Deformation Meter with flanged ends is designed to measure longitudinal deformation in dams and embankments. It can also be grouted or held in place by hydraulic anchors to measure deformations in boreholes (over the gauge length). Gauge lengths from 0.5 to 100 meters are available.


Standard Ranges¹
25, 50, 100, 150, 300 mm
0.025% F.S.
±0.1% F.S.
<0.5% F.S.
Temperature Range¹
−20 °C to +80 °C
Length × Diameter
varies × 27 mm (pipe), 51 mm (flange), 42 mm (slip coupling)

¹Other ranges available on request.

²Resolution depends on readout equipment.

³Transducer accuracy established under laboratory conditions.

Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.