Introduction

Choosing the right Magnetometer is an important part of any marine geophysical survey.

Different models offer different sensitivity levels, operating depths, towing capabilities, and software integration. Selecting the correct equipment helps improve survey accuracy, reduce operational time, and produce reliable magnetic data.

What Should You Consider Before Choosing a Magnetometer?

Before purchasing or hiring a Magnetometer, consider its sensitivity, operating depth, towing speed, compatibility with your survey software, ease of maintenance, durability, technical support, and availability of spare parts.

Also make sure the system is suitable for the type of project, whether it is a pipeline survey, UXO investigation, harbour development, or offshore construction.

Geometrics

Geometrics is one of the most respected manufacturers of marine magnetometers. Their instruments are widely used for hydrographic and geophysical surveys around the world because of their high sensitivity and reliable performance.

Popular Models

• G-882 Marine Magnetometer
• G-882 Cesium Magnetometer

Best For

• Pipeline Route Surveys
• Cable Route Surveys
• Shipwreck Detection
• UXO Surveys
• Offshore Engineering

Marine Magnetics

Marine Magnetics specializes in marine magnetic survey equipment and is known for producing highly sensitive Overhauser Magnetometers.

Popular Models

• Explorer Magnetometer
• SeaSPY2 Marine Magnetometer
• SeaSPY2 Towfish System

Best For

• Offshore Surveys
• Harbour Surveys
• Archaeological Surveys
• Marine Construction
• Environmental Studies

JW Fishers

JW Fishers manufactures underwater search and recovery equipment, including compact marine magnetometers.

Popular Models

• Proton 5 Magnetometer

Best For

• Search and Recovery
• Small Boat Surveys
• Harbour Inspection
• Marine Archaeology

SmartSolo

SmartSolo develops portable magnetic survey systems used in geophysical exploration and engineering investigations.

Popular Models

• GSM-19 Series

Best For

• Engineering Surveys
• Scientific Research
• Magnetic Exploration
• Environmental Projects

GEM Systems

GEM Systems is a well-known manufacturer of high-performance magnetometers used in marine, mining, environmental, and scientific applications.

Popular Models

• GSM-19 Marine Magnetometer
• GSMP-35U

Best For

• Marine Geophysical Surveys
• Mineral Exploration
• Scientific Research
• Offshore Projects

How to Choose the Right Magnetometer

The best Magnetometer depends on your survey objectives.

For offshore pipeline inspections and UXO surveys, choose a high-sensitivity system that can detect small magnetic anomalies.

For harbour inspections and coastal engineering, a compact and easy-to-operate Magnetometer may be more suitable.

Also compare software compatibility, sensor durability, towing performance, calibration requirements, warranty, and local technical support before making your final decision.

Conclusion

A high-quality Magnetometer helps survey teams detect buried metal objects with confidence. Leading manufacturers provide reliable systems for offshore engineering, hydrographic surveys, dredging projects, pipeline inspections, and marine archaeology. Selecting the right model improves survey accuracy and supports better decision-making throughout the project.