Product Description High sensitivity geophone element 4.5Hz Vertical EG-4.5-HS-I The High Sensitivity geophone is used to receive the weak deep and .....
GS 20DX geophone 100hz The GS 20DX geophone 100hz (EG-100-I) is a conventional double-lead spring geophone with small error in operating parameters .....
GS 20DX geophone 60hz The GS 20DX geophone 60hz (EG-60-I) is a conventional double-lead spring geophone with small error in operating parameters and ....
GS 20DX geophone 40hz The GS 20DX geophone 40hz (EG-40-I) is a conventional double-lead spring geophone with small error in operating parameters and ....
GS 20DX geophone 28hz The GS 20DX geophone 28hz (EG-28-I) is a conventional double-lead spring geophone with small error in operating parameters and ....