30Hz to 100Hz vertical and horizontal geophone. CDJ middle & high frequency geophones, 4,10,15,28,30,40,60,80 or 100Hz, are widely used to seismic prospecting of petroleum, coal, metallurgy, national defense, engineering and...

4Hz to 28Hz vertical, horizontal, 3C geophone. CDJ middle & high frequency geophones, 4,10,15,28,30,40,60,80 or 100Hz, are widely used to seismic prospecting of petroleum, coal, metallurgy, national defense, engineering and...

It is mainly used in integrated logging in oilfield,hydrology engineering,solid mineral and other resources.                 JGS-1B Intelligent Engineering Logging System FeaturesExtension notebook...

1Hz--100Hz Vertical, Horizontal and 3 Components Geophones. CDJ Series Geophones, natural frequency from 1Hz to 100Hz, include vertical geophone, horizontal geophone, bi-component geophone, tri-component geophone and inner-well geophone.CDJ low-frequency geophones, 1Hz, 2Hz, 2.5Hz...

2.5Hz-3Hz vertical,horizontal and tri-conponents geophone. CDJ low-frequency geophones, 1Hz, 2Hz, 2.5Hz or 3Hz, are widely used in deep seismic prospecting, earthquake monitoring, microseismometry in engineering, surface wave survey and low frequency measurement in other...

DZD-6A Multifaction DC Resistivity (IP) Meter. It is mainly used for searching underground water. DZD-6A Multifunction DC Resistivity(IP) MeterApplications       •  By means of the related parameters of apparent resistivity and induced...