Specification :

he RAS-24 is a modular 24-channel, high resolution, signal
enhancement seismograph designed for shallow refraction
and reflection surveys. The system combines state-of-the-art
24-bit conversion with a flexible, expandable architecture that
provides the ease of use of a conventional system with the
advantages of a distributed system.

Whether you’re looking for a 12-channel seismograph for small
refraction jobs or a 240-channel system for 3D reflection, the
RAS-24 has the data quality, features and performance you need
for the most demanding jobs.