MagArrow Mk2 magnetometer - Remote Robotic
MagArrow Mk2 magnetometer - Remote Robotic
MagArrow Mk2 magnetometer - Remote Robotic
MagArrow Mk2 magnetometer - Remote Robotic
MagArrow Mk2 magnetometer - Remote Robotic
MagArrow Mk2 magnetometer - Remote Robotic
SPH Engineering

MagArrow Mk2 magnetometer

Contact us for pricing
Contact us for pricing

Proof of concept program

Remote Robotic helps enterprise and public-sector teams validate advanced robotics solutions—drones, UGVs, ROVs, docking systems, and sensors—through a hands-on Proof-of-Concept (POC) program.

Designed for utilities, public safety, mining, energy, and large industrial organizations that need clarity, ROI, and operational certainty before investing.

Learn more and apply

Gradient Tolerance: 10,000 nT/m
Weight (without batteries): ~1.0 kg
UAV Payload: ≥ 1 kg
Operating Range: 20,000 – 100,000 nT
Operating Temperature: –20 °C to +40 °C
Magnetometer
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The Geometrics MagArrow Mk2 is an advanced, self-contained UAV-deployed magnetometer system designed to transform aerial magnetic surveys. Engineered for enterprise drones, the MagArrow Mk2 brings high-precision magnetics, GPS-synchronised logging and WiFi data transfer in a lightweight 1-kg form factor and is ideal for UXO detection, buried infrastructure mapping, archaeological surveys, and geological exploration.

Thanks to its 1 000 Hz sampling rate, 0.005 nT/√Hz sensitivity, and wide operating range (20,000-100,000 nT), the MagArrow Mk2 allows operators to fly at higher speeds (up to 10 m/s) whilst capturing data every 1 cm — significantly improving survey efficiency while maintaining quality. 

Its “drone-agnostic” design means it can be mounted on most enterprise UAV platforms with as little as ~1 kg payload capacity, making integration with your existing assets straightforward. Plus, its internal GPS, IMU, micro-SD storage and WiFi interface mean no physical tethering to the UAV — minimal setup, maximum flexibility

Operating Specifications

  • Operating Principle: Laser-pumped cesium vapor (Cs133, non-radioactive) total field scalar magnetometer
  • Operating Range: 20,000 – 100,000 nT
  • Gradient Tolerance: 10,000 nT/m
  • Operating Zones: Global operation with no dead zones
  • Dead Zone: None
  • Noise / Sensitivity:Typical: 0.005 nT/√Hz rmsGuaranteed: 0.01 nT/√Hz rms(SX export version ≤ 0.02 nT/√Hz rms)
  • Sample Rate: 1,000 Hz synchronized to GPS 1PPS
  • Bandwidth: 400 Hz
  • Heading Error: ± 5 nT over full 360° rotation (typical)

Data & Connectivity

  • Output: Wi-Fi data download over 2.4 GHz access point
  • GPS Accuracy: CEP ≤ 1.5 m (≤ 1.0 m with SBAS)
  • USB Port: Flash-drive port for firmware upgrades
  • Data Logger: Integrated onboard system
  • Data Storage: 32 GB microSD (U3 speed class, not field-accessible)
  • Data Download: Via 2.4 GHz Wi-Fi using browser-enabled Android device(Approx. 1 minute download per 10 minutes of recorded data)Not compatible with iOS devices
  • IMU:Bosch BMI160 Accel/Gyro (200 Hz sample rate)Insentek Compass (100 Hz sample rate)

Physical Characteristics

  • Total Weight: 1.2 kg (without batteries)
  • Length: 1 m

Battery System

  • Connection: 2 × XT60 connectors
  • Recommended Batteries: Non-magnetic Li-Po (1,800 mAh or 2,200 mAh, 3S 11.1 V)
  • Design: Hot-swappable for continuous operation
  • Battery not included

Environmental Conditions

  • Operating Temperature: −20 °C to +40 °C (−4 °F to +104 °F)
  • Humidity: Non-condensing

Included Accessories

  • Carrying case
  • AC power adapter
  • USB drive with operation manual and software
  • JIS1 screwdriver and drill bit
  • Suspension cords
  • Warranty: 1 year

Remote Robotic is a North American authorized dealer for SPH Engineering MagArrow Mk2 magnetometer.

Your purchase includes the full standard manufacturer warranty, and we also offer optional support programs to help protect your equipment and keep it performing at its best.

Learn more about Extended Care Program

MagArrow user manual

We offer training for all robotic solutions

Learn more

MagArrow Mk2 magnetometer FAQ

The MagArrow Mk2 is designed to operate on UAV platforms with a payload capacity of around 1 kg or more. For best performance (especially in low‐altitude surveys), using a drone with stable altitude hold and terrain-following capability is recommended to maintain optimal sensor height above ground.

Thanks to the 1 000 Hz sample rate, the MagArrow Mk2 can capture data every 1 cm at flight speeds up to approximately 10 m/s. This allows for faster survey lines without compromising on data resolution, giving a major efficiency boost in large-area or demanding surveys.

The MagArrow Mk2 is highly suited for operations such as geophysical mapping (minerals, geology), UXO/landmine detection, archaeological feature detection, and reclaimed/disused infrastructure surveys. Its high sensitivity and drone-friendly form make it an excellent choice for missions requiring fine-scale magnetic anomaly detection.

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