Guralp CMG-3ESPC, 50Hz to 60sec BB Seismometer
The sensors are BB sensors and record the seismic signal in 3D. It is deployed together with an accelerometer, a digitizer and a GNSS GPS. It sends the data real time to a network data base, 24/7/365. Many of these pieces of equipment constitute a network that is used for the seismic monitoring.