The CMG-6TD is an ultralow-power, ultralightweight, compact, 3-component digital-output seismometer with up to 8 Gb of internal high-speed FLASH data storage. This instrument combines the functions of seismometer, digitizer, and data-logger into a single, compact package. The CMG-6TD is portable and versatile, and ideally suited for volcano studies, surface deployments, and refraction studies. It is extremely simple and quick to deploy.1

The velocity sensors have a standard bandwidth of 30 sec to 50 Hz, as well as a calibrated, configurable 1-second response. Alternate low-frequency corners are 60 seconds and 10 seconds, and the alternate high-frequency corner is 100 Hz....

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