"Geo Space continues to develop new and improved products to meet the changing demands of the industry. The GS-PV1-S Dual Sensor matches sensitivity between two gimbal mounted GS-30CT Geophones and one MP-25 type Hydrophone to minimize ghosting and provide the highest quality data acquisition in ocean bottom applications. Also available is the GS-PV1 Full Wave 3-component geophone with a MP-25 Hydrophone. The MP-25 is the next generation of the time-tested MP-24 Hydrophone and offers enhanced sensitivity and operational depths to 650 feet. Both hydrophones are available with a stainless steel stress relief cable for reliable retrieval after ramming. Quality land and shallow water cables will soon be added to our growing product line. The 3-D and 4-D applications, Geo Space offers the PC-3D Waterproof Land Case which houses three GS-20DM Small Digital Grade Geophones in the standard V/H1/H2 configuration. In 1997, Geo Space celebrates 40 years as an industry leader in providing advanced, quality products backed by enthusiastic service and world-wide after-sales support. Here we see a Geo Space worker assembling Dual Sensors. Every part is carefully checked with rigid standards and care. Assembly is divided into stations whereby every person thoroughly is familiar with a particular part. Soldering the ""pigtails"" on a coil assembly is extremely tedious work and requires a steady hand. Our workers are carefully trained to never overlook a single detail-thereby assuring quality for you. Even after our workers have carefully assembled and tested our components, we have fully automated robotic testing devices that will put each geophone through a vigorous series of tests. "