- Geosense
VW Soil Extensometer GEO-XS
The VW Soil Extensometer GEO-XS is a highly reliable instrument designed to measure soil movement with precision. It is commonly used in projects that require continuous tracking of ground deformation, such as embankments, earthfill dams, retaining structures, and settlement studies. The system uses a vibrating wire sensor, which delivers stable readings even in harsh field conditions. Because of this, the GEO-XS remains accurate over long monitoring periods.
The extensometer works by tracking changes in the distance between an anchored point in the soil and the surface reference. When the ground moves, the sensor detects the displacement and sends the data to a logging system. The readings help engineers understand how soil layers behave over time. As a result, the instrument plays a key role in early-warning systems and long-term geotechnical monitoring.
Installation is simple, and the instrument fits well into a wide range of soil conditions. It performs reliably in both shallow and deep installations. The GEO-XS also integrates easily with automated data acquisition units. Because it uses vibrating-wire technology, it remains stable despite temperature changes, electrical noise, or long cable runs. This makes it ideal for remote sites and locations with variable environmental conditions.
Overall, the GEO-XS provides engineers with a clear picture of ground performance. It supports better decisions, improves safety, and helps ensure that structures behave as expected throughout their life cycle. With durable construction and long-term stability, the GEO-XS is a trusted choice for soil displacement monitoring.

Advantages
Long-term stability
Vibrating wire technology ensures consistent results over years.
High reliability
Performs well under tough field conditions.
Low maintenance
Minimal recalibration is needed.
Flexible application
Works in many soil types and site conditions.
Easy integration
Fits well into existing monitoring networks.
Strong early-warning value
Detects ground movement before it becomes harmful.
Key Features
- Vibrating wire sensor for stable long-term performance
- High accuracy for soil settlement and displacement measurement
- Suitable for shallow and deep installations
- Robust stainless-steel construction
- Simple installation and maintenance
- Compatible with automated data loggers
- Excellent performance in harsh environments
