Güralp Fortis

FortisHigh performance, low noise, compact, broadband accelerometers

The Güralp Fortis accelerometer is a strong motion accelerometer with an innovative, slim-line design for fast installation in any environment.

Key Features

  • Very low-noise components for high precision and enhanced dynamic range
  • Fixing bolt allows rapid installation for structural health monitoring
  • Slimline shape
  • Locally and remotely switchable gain from 0.5 to 4.0 g
  • Simple installation with a single M8 fixing bolt; robust and waterproof
  • No sensor levelling required
  • Isolated power supply for 10 – 36 V operation
  • Acceleration offsets adjustable for <1 mV precision

To read the full specification, view the Fortis brochure.


Configuration / Topology: Triaxial orthogonal (ZNE)
Feedback: Force feedback.


Response: DC – 100Hz (Other options available)
Gain switch options: 4 g, 2 g, 1 g or 0.5 g
Output sensitivity: 2.5 V/g, 5 V/g, 10 V/g, 25 V/g
Clip level: 4.2 g
Peak / Full scale output: ±10 V differential
Cross axis rejection: 0.001 g/g
Linearity: 0.1 % full scale
Lowest spurious resonance: >450Hz
Self-noise: > 0.07 Hz (14 seconds)
Dynamic range: > 172 dB


Calibration controls: Independent signal & enable lines exposed on sensor connector


Mass control / locking: Remote offset zeroing