product product

Reinforced 14Hz Geophone for Land, Desert, Snow, Marsh and TZ

The reinforced 14hz geophone for land (ST-14N) is designed equivalent to SM-4 structure, which is for low weight, long field-life,and ultra reliable performance. Precision engineered components and computerized test equipment ensure consistency in manufacture and operation throughout and beyond the limited replacement guarantee period of three years.

  • Precision machine, rotating coil design.
  • Precious metal contacts for consistent reliable &prolonged field performance.
  • Vertical and Horizontal elements available and also suitable for 3-C applications.
  • Different type of geophone cases which are suitable for land,desert, snow, marsh and transition zone respectively.
  • Steel Spike or Brass Spike optional.
  • Widely used in structural and industrial monitoring system.
  • 3-year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.
  • For 2-D and 3-D seismic exploration with bandwidth from 10Hz up to 190Hz.

GS-20DX 14Hz equivalent geohpone is also available.

Click here and download data sheet of reinforced 14hz geophone for land or contact us to get special discounts.


For any inquiries, please contact with our Marketing Team at or Supporting Team at


Reinforced 14Hz Geophone for Land Product Parameters


(Equivalent to SM-4,14hz)

ST-20DX, 14hz

(Equivalent to GS-20DX,14hz)

Natural frequency ( Hz )14 ± 5%14±5%
Open circuit damping0.2 ±5%0.22
Damping with Shunt Resistor0.6 ± 5%0.51±5%
Open Circuit Intrinsic Voltage Sensitivity(V/m/s)28.828.0
Sensitivity with Shunt Resistor(V/m/s)18.2 ± 5%20.0±5%
Coil Resistance (ohm)375 ± 5%395±5%
Harmonic Distortion ( % )<0.2≤0.2
Typical Spurious Frequency ( Hz )≧240≥250
Moving Mass ( g )11.611.0
Max.coil excursion p-p (mm)2.01.5
Max.tilt angle20º20º
Element Diameter (mm)25.425.4
Element Height (mm)3233.5
Element Weight (g)7487.0
Operating Temperature(℃)– 40℃ to + 100℃– 45℃ to + 100℃
Warranty Period3 years3 years
● All parameters specified herein are rated at a temperature 20℃±2℃.
● 3-year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.

* 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, 8Hz, 10Hz, 14Hz, 15Hz, 28Hz, 30Hz, 38Hz, 40Hz, 60Hz,80Hz and 100Hz geophones.

*  Specifications are subject to change without prior notice.

  • Home
  • Contact Us
  • Top
  • toptop