We supply low frequency Three Direction Geophone ( 3D Geophone ) for the following types:

3D Geophone 1Hz

3D Geophone 2Hz

3D Geophone 2.5Hz

3D Geophone 3Hz

3D Geophone 4Hz

3D Geophone 4.5Hz

All these 3D Geophones are widely used in deep seismic prospecting,seismic surveillance ,microseismic,surface wave survey and low frequency measurements in other fields.
Data Sheet for 3D Geophone 2Hz:
Natural frequency:2Hz ±10%
Coil resistance (Ω):6040 ±10%
Sensitivity (V/cm·S^-1):2 ±10%
Damping factor:0.7±10%
Internal resistance (Ω):5800±5%
Insulating resistance:≥10MΩ
1 to 20Hz phase difference Inside band(°):≤±3
Operating temperature:-25℃ to +55℃