2D and 3D Vertical Horizontal Geophone Seismic Geophone for Sale Frequency 4.5Hz False frequency ≥140 Resistance 375±5% Damping 0.56±8% Diameter 25.4mm Height 35.5mm(horizontal)/33.9mm(vertical) ...View More
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Geology Seismic Geophone Sensor Vertical Horizontal Geophone 2D And 3D