Vertical Array

The Vertical Array is an automatic 3D inclinometer designed to monitor movement at different depths in landslides and embankments. It takes the form of a sequence of IP69 sealed nodes joined together using Kevlar cable and a four-core signal cable. Each node contains a high-resolution 3D MEMS sensor, a magnetometer and a thermometer. The number of measuring sensors, the spacing and the length of the instrument can be defined according to the project requirements. The Vertical Array is supplied inside a plastic tube that acts as a protection for the sensors and allows them to slide. The Vertical Array can be controlled by the G802, G301 or any other Datalogger compatible with the RS485 Modbus RTU protocol.

The Vertical Array can be installed inside smooth or inclinometer pipes with a diameter equal to or greater than 3 inches if the length of the instrument is less than 50 m while it is preferable to use a 4-inch diameter pipe for longer lengths. Once positioned, the instrument must be fixed to the borehole by means of gravel or bentonite mixture according to the specifications provided by ASE. The Vertical Array is designed for use where long-term monitoring is required. If monitoring requires a retrievable instrument please refer to the Vertical Array R

Knowing the distance between the nodes, the position in space of the sensors calculated using the data recorded by the MEMS, and the orientation with respect to north using the data from the magnetometer, it is possible to identify the relative position of the instrument in space and consequently the displacements of the slope using special algorithms.

  • Result of local displacements 2D
  • Cumulative displacement result 2D
  • Cumulative North-South displacement
  • East-West cumulative displacement
  • Local and cumulative deviations of individual calculation points over time
  • Acceleration and speed of individual calculation points over time
  • Inclination angle over time
  • Azimut
  • Temperature (Min, Max, Last)
  • Temperature over time
  • Smart
  • Easily installable
  • Flexible and lightweight
  • Resilient and suitable for long-term monitoring
  • Automatic alerting based on multi-level and multi-parameter thresholds or on the inverse of speed criterion

Correlated Products


  • Rockfalls
  • Road and embankment surveys
  • Deep excavations
  • Tunnels
  • Landfills
  • G802
  • G301
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