L-28

  Salient Features:  This 3-channel sensor has a frequency of 4.5Hz, is critically damped at .707 and has a sensitivity of 30.4 V/m/s.  Used for (but not limited to) active source (land and off-shore excitations), glacial movements, local earthquake and aftershock studies. Manufacturer Documents  http://www.sercel.com/products/Lists/ProductSpecification/Geophones_brochure_Sercel_EN.pdf

Download the Brochure to obtain information about the L-28 geophones.