Application:  Seismic Refraction Tomography and MASW tests are widely used for geophysical investigations to determine subsurface structures and properties. These methods help in assessing the depth and geometry of bedrock, evaluating rock quality and the volume of excavation material, conducting surveys in landfills, and determining the elastic parameters of soil through Vp and Vs measurements. Additionally, they are essential for seismic tomography, foundation studies, and surveys in fault and shear zones. SPECIFICATIONS Model: PASI GEA 24 Depth of Investigation: Up to 50 m Geophone Spacing: 5 m. Types of Survey: 2D and 3D