![Trillium compact seismometer sitting in a posthole in the earth connected to a large cable](https://20819274.fs1.hubspotusercontent-na1.net/hub/20819274/hubfs/FY23-Trillium-Compact-PH-Hero.jpg?width=300&name=FY23-Trillium-Compact-PH-Hero.jpg)
Don’t be limited by your seismometer
The Trillium Compact Posthole is a small, ruggedized, waterproof member of the industry-leading family of Trillium seismometers. The Trillium Compact PH is rugged enough to be buried directly in an ice shelf, light enough for easy portability on a volcano, and intuitive enough to be deployed easily up to 300 metres.
![Stainless steel with red plastic connector, a Titan Posthole seismometer standing upright](https://20819274.fs1.hubspotusercontent-na1.net/hub/20819274/hubfs/FY23-Titan-Posthole-Accelerometer-LG.png?width=300&name=FY23-Titan-Posthole-Accelerometer-LG.png)
Forget complex deployments
The Trillium Compact PH is the obvious choice for those who don’t want their experiments to be limited – by a complex deployment of bulky instrumentation, by the overburden, by the effects of moisture, by thermal instability, by high power consumption or by installation technique.
A highly integrated station solution
When using the Trillium Compact PH with our popular Centaur digitizer, you’ll have access to a digital leveling bubble through the Centaur GUI. The virtual leveling bubble makes for easy leveling down a dark hole, or once buried, gives you the ability to check levelness at any time.
BENEFITS
![](https://20819274.fs1.hubspotusercontent-na1.net/hubfs/20819274/downhole-icons.png)
Deployment Kits
Our rugged and supremely functional deployment cases turns a collection of monitoring equipment into a quick-deploy portable station, with everything you need for a short-term, standalone deployment.
![Deploy kit case with solar panel on top and connected to a seismometer via large cable](https://20819274.fs1.hubspotusercontent-na1.net/hub/20819274/hubfs/QuickDeploy-PH.jpg?width=300&name=QuickDeploy-PH.jpg)