Here is a picture of a typical geophone station that I run in Iceland. This is the computer and other needed hardware on the Böðvarshólar geophone station that I am running. This hardware used to be the Hvammstangi geophone station until December 2012 when I had to move it.
What is not shown in this picture is the geophone it self. But it is in the white box on the table. The readings from all my geophone stations can be found here.