SparkFun Geophone – SM-24 1-axis, Flex / Force

Need to put your finger on the pulse of the Earth? Did I just blow your mind? A geophone works by translating ground movement into voltage, which can easily be read by a microcontroller. The SM-24 geophone element is designed to offer the highest performance in seismic exploration based upon field-proven I/O Sensor technology. Low distortion, combined with excellent specifications, provide high-fidelity data. Basically, it’s a super low frequency microphone for the ground.

Perfect for all of your 2-D & 3-D seismic exploration needs with bandwidth from 10 Hz up to 240 Hz

Features:

• Tight specification, low-distortion vertical geophone
• Extended spurious over 240 Hz, allowing full bandwidth at 2-ms sampling
• Sensitivity of 28.8 V/m/s