Serial output

Includes instrument serial number, response and calibration parameters

120 s - 100 Hz

With a remotely adjustable long-period corner of 1 s, 10 s, 20 s, 30 s, 45 s, 60 s, 90 s 100 s or 120 s

Ultra-low-power < 250 mW*

Ideal for remote sites powered by battery or solar.

*Power performance may vary as a result of restricted semi-conductor availability


± 90° tilt range

No other seismometer is easier to install.

Analogue output

For plug-and-play deployment.

For surface and posthole installations

Suitable for depths to 10 metres


Certis image

Easy installations

With an operational tilt range of ± 90°, the hole required for direct burial just got a lot smaller.

And, if you need to be up and running in the shortest timeframe, the long-period corner can be adjusted pre- or post-deployment* allowing you to match the response to the environment.

* when operated with a Minimus digitiser

Instrument and data management made simple

The ideal data acquisition partner for Certis is the Minimus which provides state-of-the-art communication capabilities including versatile data streaming and storage capabilities and industry standard triggering algorithms.

By pairing with a Minimus you also access Güralp Discovery, our sophisticated instrument and data management software platform.

Discovery gives you access to hardware State-of-Health; data viewing; data streaming and back fill capabilities; advanced data analysis tools; GNSS location; instrument response and calibration values.

Find out more about Discovery

Small, compact and robust

Measuring just 112 mm tall and encased in an environmentally sealed stainless steel casing, Certis is very portable whilst capable of withstanding the harshest of environments.

An internal thermometer and a humidity sensor alert you to any moisture ingress.


Configuration / Topology
Triaxial orthogonal (ZNE)
Maximum frequency response bandwidth
120 s (0.0083 Hz) to 100 Hz
Remotely selectable long-period corner of 1 s, 10 s, 30 s, 45 s, 60 s, 90 s, 100 s or 120 s
Output sensitivity
1000 V/ms-¹
Sensor dynamic range
155 dB
-173 dB at 10 seconds
Operational tilt range
+/- 90 degrees
Cross axis rejection
> 65 dB
> 95 dB
Lowest spurious resonance
> 450 Hz
80 mm × 80 mm × 112 mm high (including fixed feet to top of connector)
1.9 kg (disconnected)

Want to know more?

Complete our enquiry form and one of our team will be in touch.
Güralp Systems Ltd.
3 Midas House, Calleva Park
Aldermaston, Reading
United Kingdom

Tel: +44 1189 819056
Email: sales@guralp.com
Copyright © 2024 Güralp Systems Ltd. All Rights Reserved.

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