Güralp has developed a range of sensor families that vary in performance from the very low frequency, very low noise required for teleseismic research, to medium and strong motion instruments more suited to regional and localised monitoring. We offer a choice of sensor casings and instrument accessories suitable for a range of deployment methods and your communication and power requirements.

We can supply sensors for deployment at the surface, in boreholes and on the ocean bottom. We offer fully integrated digital instruments as well as analogue instruments for use with a separate digitiser.

Güralp Radian

In 2016 we launched the Güralp Radian. The Radian is a slimline, subsurface, broadband digital seismometer that utilises state of the art technology in order to operate at any angle. This capability makes the Radian the ideal rapid deployment posthole instrument as it can be installed with a hand auger. A borehole Radian for vertical and non vertical cased holes is also available, and as well as individual deployments, it can be strung together to provide Vertical Seismic Profiling (VSP). For more information read the full Radian brochure here.


Contact Güralp for help selecting the most suitable instrument, or to find out more about any of our instruments.


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Güralp 3 series

Very broadband instruments, portable and vault versions

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Güralp 5 series

Strong motion accelerometers

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Güralp Fortis

New slimline strong motion accelerometer with switchable gain


Güralp Radian

A slimline triaxial broadband digital seismometer available as posthole or borehole that operates at any angle.


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Güralp 6 series

Medium motion portable instruments

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Güralp 40 series

Medium motion rugged instrument

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Guralp surface instruments

Instruments for surface deployment

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Guralp borehole instruments

Instruments for subsurface deployment


hybrid borehole 210 x80

Güralp hybrid instruments

Multi-sensor instruments for extended dynamic range


 OBS 210x80

Güralp ocean bottom seismometers

Instruments for ocean bottom deployment


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You can view our case studies to find out more about how our instrumentation is used around the world.



Guralp Systems Limited
Midas House
Calleva Park

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