Geostudi Astier S.r.l. Via E. Fagni, 31 - 57123 Livorno - Italy | Tel: 0586 864734

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GEM Systems

GEM Advanced Magnetometers is a supplier of magnetometers, gradiometers and magnetic sensors for Earth Science, Geophysics and other applications. With more than four decades in the research and development of equipment for geophysical exploration, GEM is also known for its service and support – featuring knowledgeable magnetics professionals and the industry-leading two-year warranty program. 

GEM Systems - AIRGrad

 AirGRAD: Revolutionary Lightweight Vertical Gradiometer for UAV Geophysical Surveys

Next-Level Precision in Aerial Surveys: The AirGRAD Vertical Gradiometer, a breakthrough in UAV geophysical survey technology, sets new benchmarks in the field. With a mere weight of 6.0 kg, this innovative solution represents the pinnacle of lightweight and high-sensitivity survey equipment.

Featuring two advanced ultra-lightweight magnetometers, the AirGRAD offers unparalleled sensitivity in magnetic field detection. This dual-magnetometer configuration enhances the precision and detail of geophysical data, making it a versatile tool for various applications.

Versatile and High Precision Applications: Ideal for mineral exploration, archaeological studies, environmental monitoring, and geological mapping, the AirGRAD is specifically tailored for diverse and challenging UAV survey missions. Its lightweight build and high precision are perfectly suited for navigating complex terrains and sensitive areas, often encountered in aerial magnetic surveys.

The AirGRAD is not merely a gradiometer; it's an investment in cutting-edge technology that transforms the efficiency and accuracy of UAV-based aerial surveys.

Magnetic map

GEM Systems - UAV VLF

Advanced UAV VLF-EM

GEM Systems' UAV VLF-EM System: This state-of-the-art system represents the pinnacle in geophysical survey equipment, offering advanced resistivity mapping capabilities. Utilizing the Very Low-Frequency (VLF) Electromagnetic Method, it taps into global transmitters within a frequency range of 15.0 – 40.8 kHz, setting a new standard in electromagnetic survey technology. This drone-based geophysical equipment surpasses traditional survey methods in both quality and safety, ensuring the delivery of optimal data in diverse environmental conditions.

Precision Mapping and Detection:

Designed for unparalleled precision, system excels in detecting vertical deviations influenced by local ground conditions, making it a premier choice in geophysical surveying tools.

Key Applications:

• Mineral Exploration: Discover mineral deposits with enhanced precision.
• Bedrock Mapping: Achieve detailed bedrock delineation.
• Conductivity Contrast Detection: Ideal for identifying variations in ground conductivity.
• Geological Contact Mapping: Accurately map geological contacts and faults.
• Water Source Detection: Efficiently locate underground water resources.
• Underground Pipeline Identification: Essential for mapping buried infrastructure.

GSM-19 Overhauser Magnetometers


DRONEmag™ (GSMP-35U/25U) Magnetometer
 Expert-Endorsed UAV Magnetometer Technology by GEM Systems:  DRONEmag™, a top-tier, lightweight, high-sensitivity UAV magnetometer. This tool, weighing less than 1 kg, is a game-changer in UAV geophysics and magnetic surveying
Experience unmatched sensitivity (0.2 pT) and accuracy, thanks to our advanced optically pumped Potassium Magnetometer sensor. This sensor sets a new benchmark in magnetic field measurement and geophysical survey equipment, guaranteeing unparalleled gradient tolerance and absolute accuracy.
The GSMP-35U/25U magnetometer delivers up to 20 readings per second, providing high-resolution magnetic data essential for mineral exploration, archaeological surveys, and environmental studies. DRONEmag™ is not just a magnetometer; it's a critical asset in advanced UAV surveys. Ideal for applications ranging from resource exploration to infrastructure mapping, it redefines efficiency and accuracy in airborne geophysical exploration.
Key application:
                    Mineral Exploration
                    Archaeological Surveys
                    Environmental Studies
                    Oil and Gas Exploration
                    Utility and Infrastructure Mapping
                    Geological Mapping
                    UXO detection
                    Natural Hazard Assessment


Geostudi Astier S.r.l. Via A. Cecioni, 42 - 57127 Livorno - Italy | Tel: +39.0586 864734

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