The GSM-19WVW Combined Walking Overhauser Magnetometer / Walking VLF system is now available from Terraplus for both sale and rental. This system combines dual VLF-EM sensors together with a GSM-19W Walking Overhauser magnetometer for the simultaneous collection of both magnetic and VLF data while walking.

Until recently, combined ground magnetometer and VLF systems were available with only a single VLF sensor, requiring the operator to stop before collecting VLF data. The GSM-19WVW advances this design by incorporating dual VLF sensors that acquire data from two VLF transmitting stations simultaneously. This configuration allows for the continuous acquisition of VLF data while walking, eliminating the need to stop when taking VLF measurements.

Pairing these VLF advancements with the GSM-19W Walking Overhauser magnetometer and integrated GPS makes the GSM-19WVW a powerful solution for geophysicists looking to maximize field efficiency and data quality, enabling users to acquire georeferenced magnetic and VLF datasets simultaneously without stopping. This streamlined workflow reduces the need for multiple passes, improves productivity, and delivers comprehensive geophysical datasets in a single survey.

The combination of magnetic and VLF measurements provides a more complete understanding of subsurface conditions. Magnetic data is ideal for mapping lithological variations, geological structures, and ferrous targets, while VLF measurements help identify conductive features such as faults, fractures, shear zones, and mineralized structures. Together, these complementary datasets support more confident interpretation and decision-making in mineral exploration, geological mapping, and environmental investigations.

With its rugged design, integrated navigation capabilities, and proven Overhauser magnetometer technology, the GSM-19WVW delivers the sensitivity, reliability, and efficiency needed for demanding field programs.

Whether you’re planning your next exploration program or need a flexible rental solution for an upcoming project, we’d be happy to discuss how the GSM-19WVW can support your fieldwork. Contact us today to learn more about purchase and rental options.