Portable Tilt Meter

Geonor, Inc - Precision Instrumentation


The RST Portable MEMS Tilt Meter utilizes a MEMS inclinometer to measure tilt in either one or two axial planes perpendicular the surface of the base plate. Depending on the model, the output is an analog DC signal or digital output and is directly proportional to the sine of angle of tilt. In the horizontal position the DC output is zero. Portable MEMS Tilt Meters require placing the tilt meter in a reproducible position on a reference plate attached to the surface being monitored. The portable tilt meter system has a demountable sensor and is designed for applications where a large number of measuring points are to be observed.

Portable MEMS Tilt Meter systems consist of the tilt meter, interconnecting cable, stainless steel tiltplates, and the readout instrument. Tilt plates are bolted or bonded to the structure to accurately, and repeatedly, locate the sensor. When not in use, the plates should be shielded from damage with an optional, UHMW plastic protective cover. Readout is achieved with the Portable Tilt Meter Readout, or with the RST Field PC for the Digital Tilt Meter model.


  • Uniaxial or biaxial sensors available.
  • Horizontal or vertical applications.
  • Readout units and portable sensor are lightweight and easy to use.
  • Data logger compatible.
  • High accuracy and repeatability.
  • Operational range and temperature coefficients exceed that of bubble sensor devices.


  • Monitor tilt of retaining and building walls.
  • Tilt of concrete dams.
  • Landslide monitoring.
  • Ground subsidence.
  • Building safety along adjacent excavations.
  • Applications where the failure mode is expected to have a rotational component.
  • Differential compression in earth dams and embankments.
  • Observation of benches and berms in open pit mines.
  • Bridge piers.


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