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High performance, low noise, compact, broadband accelerometers

For strong motion we recommend the analogue Güralp Fortis triaxial accelerometer which is available as a surface or a posthole instrument and the digital Güralp Fortimus which combines the Fortis with the feature-rich Minimus digitiser. However, if a single axis or borehole accelerometer is required, we can supply the a 5U accelerometer or a 5 series accelerometer in a borehole casing. The 5 series is a triaxial, force-feedback instrument with a large dynamic range .

Key Features

  • Force feedback broadband instrument
  • Waterproof and durable with O-ring seals throughout

Model range
5U – Single axis accelerometer – Datasheet View as PDF
5TB – Borehole accelerometer – Datasheet View as PDF



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


Acceleration band: DC – 100 Hz standard (other options available)
Output sensitivity / Clip Level: 2 g standard
Peak / Full scale output: Three channels - ±20 V (40 V peak-to-peak) differential
Cross axis rejection: 0.001 g/g
Linearity: 0.1 % full scale
Lowest spurious resonance: >450 Hz
Self-noise: < 1 ug rms
Dynamic range:
>147 dB @ 0.1 Hz
>151 dB @ 1 Hz
>146 dB for 5 Hz


Type: Pulse, sine wave and broadband
Calibration controls: Independent signal & enable lines exposed on sensor connector


Mass control / locking: Remote offset zeroing


5U-angle-transparent 1000px



Guralp Systems Limited
Midas House
Calleva Park

Tel: +44 118 981 9056
Fax: +44 118 981 9943