This website uses cookies. Further information on the cookies we use can be found here. You can find out how to delete and control the cookies stored on your computer by visiting this site By continuing to use this website you are consenting to the use of cookies.


High performance sub-surface broadband seismometer with maximum versatility

At just 55 mm diameter, the Radian is the ideal subsurface digital seismometer. Available as either a posthole or borehole instrument, the Radian is operational at any angle and has a user-selectable high-pass frequency corner up to 120 seconds. To ensure successful, rapid deployment, the Radian system comes with Bluetooth connectivity that shows live waveform data on our smart phone app 'GüVü' for instant installation integrity confidence. The Radian also boasts industry standard formats for data and instrument management.

Key Features

  • Force feedback, triaxial broadband instrument
  • Available as posthole or borehole variant
  • Designed for quick deployment, operational at any angle
  • Can incorporate an additional analogue feed if required



Radian post-hole seismometer and bore-hole seismometer



Guralp Systems Limited
Midas House
Calleva Park

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