Application/Instrumentation Overview

The following table provides a quick reference for identifying a suitable system based on the type of work that you are doing as well as your performance and budgetary considerations.

To find your area of interest in the table quickly, select from one of the links below. When you find one or more solutions that appear to meet your needs, you can view related detailed information in PDF format or request a quick quotation.

Airborne
Archeology/Archaeology
Diamond and Mineral Exploration
Education and Research
Environmental and Engineering
Earthquake Hazards
Magnetic Observatory
Unexploded Ordnance Detection
Volcanology

For ease of reference, the table lists the type of instrument (Overhauser, Potassium or Proton Precession) as well as GEM’s model number with codes defined as follows:

“A” – Airborne
“C” – Continuous measurement
“D” – Inclination/Declination
“F” – Fast
“P” – Potassium
“S” – Multiple sensors
“T” – Proton precession
“W“- “Walking” mode

Application	Solution	Model	Benefits/Applicability
Airborne	Advanced Airborne Systems Request Quote	GSMP-35A/25A, GSMP-35GA/25GA, GSMP-35GA3/25GA3 View PDF	A Potassium Airborne Magnetometer delivers superior counting, gradient tolerance and sensitivity while minimizing dead zones and heading errors. A reliable choice for airborne hydrocarbon and mineral exploration applications where maximum resolution is required.
Archeology/Archaeology	Potassium Request Quote	GSMP-35/25 View PDF	Optically Pumped Potassium combines high efficiency with very high resolution for characterizing subtle anomalies in soils and weakly magnetic objects. Superior gradient tolerance for working in urban environments.
Archeology/Archaeology	Overhauser Request Quote	GSM-19, GSM-19G, GSM-19W, GSM-19GW View PDF	“Walking” Overhauser provides high efficiency and sensitivity comparable to Cesium magnetometers. A cost effective instrument for diverse archeological applications, ranging from mapping ancient cities to battlegrounds and burial mounds.
Diamond & Other Mineral Exploration	Overhauser Request Quote	GSM-19W, GSM-19GW View PDF	“Walking” Overhauser magnetometer/gradiometer provides greatest efficiency combined with high sensitivity. Industry standard for mineral exploration worldwide with built-in GPS option. Unique advantages for working in low magnetic latitudes, including omni-directional magnetic sensors and maximum magnetic signal generation.
Diamond & Other Mineral Exploration	Overhauser Request Quote	GSM-19, GSM-19G View PDF	“Standard” Overhauser gradiometer/magnetometer provides discrete station sampling combined with high sensitivity. Overhauser has unique advantages for working in low magnetic latitudes, including omni-directional sensors and maximum magnetic signal generation.
Diamond & Other Mineral Exploration	Proton Precession Request Quote	GSM-19TW, GSM-19TGW View PDF	“Walking” Proton Precession is the highest sensitivity/lowest noise walking proton precession system available. An alternative to Overhauser systems where budgetary restrictions apply.
Education and Research	Overhauser Request Quote	GSM-19W, GSM-19GW View PDF	“Walking” Overhauser provides latest technology for institutions who want to maximize investment for teaching and research purposes. Students learn from using easy-to-use, industry-standard technologies while researchers benefit through high resolution instrumentation for high quality academic results.
Education and Research	Proton Precession Request Quote	GSM-19TW, GSM-19TGW View PDF	“Walking”Proton Precession magnetometer/gradiometeris the highest sensitivity/lowest noise walking proton system available. An alternative to Overhauser systems where budgetary restrictions apply.
Education and Research	Proton Precession Request Quote	GSM-19T, GSM-19TG View PDF	“Standard”Proton Precession is the highest sensitivity/lowest noise proton precession system available. A low cost and easy-to-use system for educational purposes.
Education and Research	Potassium Request Quote	GSMP-35/25 GSMP-35G/25G View PDF	For advanced research in very high sensitivity applications. Easy-to-use system for educational purposes.
Environmental and Engineering	Potassium Request Quote	GSMP-35/25, GSMP-35G/25G View PDF	Optically Pumped Potassium combines high efficiency with very high resolution for characterizing subtle anomalies in soils and weakly magnetic objects. Superior gradient tolerance for working in urban environments.
Environmental and Engineering	Overhauser Request Quote	GSM-19W, GSM-19GW View PDF	“Walking” Overhauser provides high efficiency and sensitivity comparable to Cesium devices. A cost effective instrument for diverse environmental and engineering applications, ranging from buried drum detection to geologic mapping.
Earthquake Hazards	EUROMAG Request Quote	GSM-90F1, GSM-90F5, GSM-90 View PDF	Economical system with excellent long-term monitoring characteristics for stationary applications. Provides a range of sampling intervals according to requirements for measuring high and low frequency magnetic field variations.
Earthquake Hazards	Overhauser Request Quote	GSM-19W, GSM-19 View PDF	Advanced fast-cycling system with excellent long-term monitoring characteristics for both stationary and portable applications.
Earthquake Hazards	Overhauser Request Quote	GSM-19FC View PDF	Advanced very fast-cycling system with excellent long-term monitoring characteristics for stationary applications.
Earthquake Hazards	SuperGrad Request Quote	GSMP-20S3 View PDF	Three-sensor gradiometer with ultra-high sensitivity for stationary applications. The most sensitive gradiometer available for sophisticated measurements.
Magnetic Observatory	EUROMAG Request Quote	GSM-90F1, GSM-90F5, GSM-90 View PDF	Economical stationary magnetometer/gradiometer with excellent long-term monitoring characteristics. Provides a range of sampling intervals according to requirements for measuring high and low frequency magnetic field variations.
Magnetic Observatory	Overhauser Request Quote	GSM-19W, GSM-19 View PDF	Advanced fast-cycling magnetometer/gradiometer with excellent long-term monitoring characteristics for both stationary and portable applications.
Magnetic Observatory	Overhauser Request Quote	GSM-19FC View PDF	Advanced very fast-cycling magnetometer/gradiometer with excellent long-term monitoring characteristics for stationary applications.
Magnetic Observatory	dIdD Request Quote	GSM-90F5D, GSM-90FD View PDF	Fast-cycling and standard-cycling vector magnetometer for continuous monitoring of the earth’s magnetic field.
Magnetic Observatory	SuperGrad Request Quote	GSMP-20GM3 View PDF	SuperGradiometer designed for specialized stationary applications that require the most demanding specifications.
Unexploded Ordnance (UXO)	Potassium Request Quote	GSMP-35/25, GSMP-35G/25G View PDF	Optically Pumped Potassium combines high efficiency and high sampling with very high sensitivity for locating and characterizing UXO targets. Superior gradient tolerance for working in urban environments.
Unexploded Ordnance (UXO)	Potassium UAV Request Quote	GSM-35U/25U View PDF	“UAV” Potassium Magnetometer provides light weight sensor for high sensitivity.
Volcanology	EUROMAG Request Quote	GSM-90F1, GSM-90F5, GSM-90 View PDF	Economical stationary magnetometer/gradiometer with excellent long-term monitoring characteristics. Provides a range of sampling intervals according to requirements for measuring high and low frequency magnetic field variations.
Volcanology	Overhauser Request Quote	GSM-19W, GSM-19 View PDF	Advanced fast-cycling magnetometer/gradiometer with excellent long-term monitoring characteristics for both stationary and portable applications.