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Sensor SM-6/H-B Style 4.5Hz Geophone

Sensor SM-6/H-B style 4.5Hz Geophone( P/N: ST-4.5B) is a low distortion geophone with high sensitivity of 80.0V/m/s. The SM-6/H-B style 4.5Hz Geophone( P/N: ST-4.5B) can be supplied for vertical and horizontal orientation, which is an ideal choice for the shear-wave horizontal elements, partnering the ST-4.5B vertical sensitivity geophone in a 3-component package.

  • High open circuit intrinsic voltage sensitivity of 80.0V/m/s.
  • Low harmonic distortion is no bigger than 0.3%.
  • Work in the direction of Vertical, Horizontal or Three component structure.
  • Rugged construction with precious-metal, rotating-coil contacts.
  • Suitable for vibration monitoring.
  • 3-year limited warranty on basic elements exclusive of high voltage, lightning or physical abuse.

Click here and download the datasheet of Sensor SM-6/H-B style 4.5Hz Geophone or contact us and get more detailed information.

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Technical Specifications for Sensor SM-6/H-B Style 4.5Hz Geophone

TypeST-4.5B(Equivalent to Sensor SM-6/H-B 4.5Hz)
Natural frequency ( Hz )4.5±0.5
Open Circuit Damping0.65±10%
Coil resistance (ohms)3500±5%
Open circuit sensitivity (V/m/s)80±5%
Harmonic distortion ( % )≦0.3
Moving Mass ( g )11.3
Max. coil excursion p-p (mm)4
Max. tilt angle
Element Diameter (mm)25.4
Element Height (mm)36
Element Weight (g)86
Operating Temperature( ℃ )-40℃ to + 100℃
Warranty Period3 years
●      All parameters specified herein are rated at a temperature of 20℃±2℃.

●      3- year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.


Regular 4.5Hz geophone with sensitivty 28.8V/m/s also available.


High sensitivity geophone 2Hz with sensitivity 260.0V/m/s also available.


3C geophone 4.5Hz  with sensor options of ST-4.5N, ST-4.5A or ST-4.5B also available.


GS One style geophone sensor or land cased geophone also available.


Omni Geophone 14Hz also available.

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