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Displacement Transducers

Soil Extensometers (VW) | Model 4435

  • Model 4435 Soil Extensometer.
  • Model 4435 Soil Extensometer dimensions.
Model 4435

The Model 4435 Soil Extensometer is designed to be installed, in series, to measure horizontal strain in earthfill or rockfill dams. The 4435 has flanges on either end, which enable a series of extensometers to be bolted together forming long strings of sensors so that complete profiles of deformation or settlement can be monitored. For measurement of strains in boreholes and RCC dams, please see the Model 4430 Deformation Meter.


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
Minimum Gauge Length
610 mm
27 mm (pipe), 33 mm (slip coupling), 51 mm (flange)
Flange (L × W × H)
610 × 75 × 75 mm

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.