Meridian PH

Meridian Posthole

Combining proven technologies in a single package makes for a high-performance seismograph for downhole installations. The Meridian Posthole provides exceptional performance ideal for direct burial, or shallow or deep cased holes.

The MeridianPH features a Trillium-class seismometer and a Nanometrics digitizer mounted on a levelling system inside a stainless steel pressure vessel.

It boasts low power consumption, remote mass centering, and robust no-mass lock design inherent in all Trillium seismometers.

Instrumentation configuration is made easy with an intuitive user interface. Once configured, the Meridian PH builds its own meta data.

With the digitizer and sensor housed in a single unit, data-less seed volume is internally built and guaranteed to be correct every time.

Nanometrics’ Meridian Posthole might be right for you if:

  • You’re seeking efficient array management 

  • You want simplified, less costly logistics and installation

  • You need higher data quality than vault-style installations and simplified meta data management

  • You're installing in an urban area

  • You're concerned about the security of your assets








Have questions? Not sure which solution is right for you?

Contact a Nanometrics expert.


Meridan PH shown here with the Surface Interface Unit