The SD7M-10 is a 10 Hz natural frequency high precision geophone that has the advantage of tight tolerances, high spurious frequency and low distortion. The geophone can be packaged in a land or marsh case and can be provided in various string configurations with standard geophone connector options.
SN5A-5
The SN5A-5 is a 5 Hz natural frequency high sensitivity geophone. It is packaged in a marsh case and is ideally suited for nodal operation but can also be used with cable acquisition systems. The sensor is provided with a standard 5515 geophone connector.