3-axis magnetometer R4-M350

with drone

Overview
The UAV Magnetometer R4-M350 is an ultra-portable fluxgate magnetometer engineered for integration with UAVs (notably the DJI Matrice 350 RTK) and for handheld ground surveys. It supports high-resolution magnetic mapping and precise georeferencing using the integrated uBlox GNSS module and PPS timing. This product can be rented.

Main Features of the MagDrone R4

• Sensors: five tri-axial fluxgate sensors arranged horizontally and parallel with selectable spacing of 250 mm or 500 mm.
• Sampling frequency: 200 Hz to reduce interference from infrastructure and UAV motors.
• Internal memory: 8 GB for onboard data logging.
• User interface: single-button control and integrated Wi‑Fi server for configuration and monitoring from smartphone, tablet or laptop.
• Weight: approx. 1,400 g; compatible with UAVs with ≥ 1.5 kg payload capacity.
• uBlox GNSS module: integrated module supporting PPS and handheld ground-mode operation; enables data acquisition at survey speeds up to 5 m/s and detachable for ground use.
• Software compatibility: output compatible with geophysical processing tools such as Oasis and Surfer for magnetic mapping.

Main applications

• UXO detection and localization of small metallic objects and subsurface structures.
• Archaeological prospection: detection of buried metallic features.
• Mining exploration and subsurface geophysical mapping.
• Environmental and geological monitoring: magnetometric surveys of faults and anomalies.

Ground use
With the integrated uBlox GNSS, the magnetometer can be operated independently of a UAV as a handheld unit for georeferenced surveys in areas where flight is restricted, supporting survey speeds up to 5 m/s.

Accessories
Standard package

• DJI M350 UAV with accessories (4× TB65 smart batteries, charging station, radio controller, hard transport case)
• R4 magnetometer (fluxgate) with carbon frame, 5 integrated sensors, data logger and hard case
• SkyHUB data logger for integrated altitude sensor management with UgCS flight planning software
• SkyHUB Core software package
• Terrain following system (TTF) with integrated radar altimeter
• Custom payload software for TTF
• MagDrone DataTool software
• UgCS Pro expert software
• Landing gear extensions
• Documentation: certificate, user manual

Optional accessories

• R3 magnetometer (fluxgate) with 3 integrated sensors (alternative)
• Ground kit with external uBlox GNSS receiver for terrestrial surveys
• Magnetic base station for data compensation

Downloads

• Technical datasheet (PDF)

Specifications

• Model: R4-M350 (UAV Magnetometer R4-M350)
• Sensors: 5 tri-axial fluxgate sensors
• Sensor spacing: 250 mm or 500 mm
• Sampling frequency: 200 Hz
• Internal memory: 8 GB
• User interface: single-button control, integrated Wi‑Fi server
• Weight: approx. 1,400 g
• Required UAV payload: ≥ 1.5 kg
• GNSS: integrated uBlox module (PPS, handheld mode, data acquisition up to 5 m/s)
• Compatible processing: Oasis, Surfer