3T5T Borehole

Achieve exceptional dynamic range with this hybrid 3T/5T borehole package.

The Güralp 3T/5T combines our best selling 3T broadband seismometer with the proven 5T strong motion accelerometer. This allows for simultaneous monitoring of both weak and distant seismic events, and near-field, high intensity shaking, in a single instrument.

The instrument has a diameter of just 89 mm suitable for installation in boreholes with diameters ranging from just 99 m up to 203 mm.

The instrument is supplied with surge protection and a strain relief mechanism to isolate the sensors in the instrument from motions in the cable.

The flexible, modular design offers a range of installation possibilities including with a borehole digitiser for a fully networked solution inside a single borehole.

An improved skid design guarantees the stability of the instrument in the casing and improves the high frequency response of the 5T sensor.