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Make Seisberry, an Open Source Seismograph #piday #raspberrypi @Raspberry_Pi « Adafruit Industries – Makers, hackers, artists, designers and engineers!
DIY Geophone | money | This is a very simple DIY project that will save you quite a bit of money. Using parts that you can easily get online for under $50,
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ASTM D7400-08 and ASTM D4428 Borehole 3D Geophone Downhole 3c Geophone Crosshole Geophones for Gea 24 Seismograph - China Borehole Geophone, Land Geophone | Made-in-China.com
![10Hz Three Component 3c Well Geophone Strings Seismic Borehole Geophone - China Borehole Geophone and Geophone 10Hz Three Component 3c Well Geophone Strings Seismic Borehole Geophone - China Borehole Geophone and Geophone](https://image.made-in-china.com/2f0j00UBrWuvdGazop/10Hz-Three-Component-3c-Well-Geophone-Strings-Seismic-Borehole-Geophone.webp)