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2Hz High Sensitivity Geophone

2Hz High Sensitivity Geophone(P/N: ST-2A) is designed for receiving deep, low frequency and weak signals. With the characteristics of ultra-low natural frequency, ultra-high sensitivity along small volume and lightweight. ST-2A is suitable for engineering vibration measurement and single point signal acquisition with vertical, horizontal or three-component combination optional.

  • High signal-to-noise ratio and wide dynamic range up to 1Hz to 1000Hz.
  • Low natural frequency of 2Hz.
  • Ultra-high sensitivity of 260.0V/m/s.
  • Low distortion≤0.3%.
  • Single point acquisition, light weight and portable deployment.
  • With the direction of vertical geophone, horizontal geophone or 3D geophone optional.
  • Geophone sensor or land cased geophone optional.
  • Assorted geopone bases are interchargable for suiting with soft earth and hard surfaces.
  • 1-year limited warranty on basic elements exclusive of high voltage, lightening or physical abuse.

Click here and download data sheet of low frequency 2hz high sensitivity geophone or contact us and get more detailed information.

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Data Sheet for 2Hz High Sensitivity Geophone


Natural frequency (Hz)2±15%
DC Resistance (ohm)6400 ±10%
Sensitivity (V/m/s)260±15%
Open Circuit Damping0.7±15%
Distortion (%)≦0.3
Allowable Tilt0℃
Element Diameter (mm)38
Element Height (mm)47
Element Weight (g)Vertical:264.0g / Horizontal 273.0g
Operating Temperature(℃)-40℃ to + 100℃
Working DirectionVertical / Horizontal / Three-component
–  All parameters specified herein are rated at a temperature of 20℃±2℃

–   1-Year Limited Warranty on basic elements exclusive of high voltage, lightening or physical abuse.


Triaxial geophone 2hz also available.


SM-6/H-B style 4.5Hz geophone with open circuit 80.0V/m/s also available.


GS One style geophone sensor also available.


Omni geophone 14Hz also available.


– Other type of geophones are also available: SM-4 Equivalent, SM-6 Equivalent, SM-24 Equivalent, SG10 Equivalent, GS-20DX Equivalent, GS-32CT Equivalent, GS ONE Equivalent, 1Hz, 2Hz, 2.5Hz, 3Hz, 4Hz, 4.5Hz, 5Hz,8Hz, 10Hz, 14Hz, 15Hz, 28Hz, 30Hz, 38Hz, 40Hz, 60Hz,80Hz and 100Hz.

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