... DZS-1 Deep Digital Seismograph is a kind of 3D data acquisition device. Mainly utilizes explosion and huge seismic wave ... etc, especially for long time unattended testing System consists of data acquisition device, zero time receiver and built-in geophone. ... lower than 1μVPDA or laptop computer operationIndustrial CF card data storage, safe and reliableSmall-sized, water-proof, shock-proof, anti ...