SENSYS MagDrone R4 magnetometer
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The SENSYS MagDrone R4 is an ultra-lightweight UAV magnetometer survey kit with 5 triaxial fluxgates on a dismountable sensor tube, made for the DJI M300 and attachable to other UAVs. HobiTech supplies it in India as an Official Partner of SPH Engineering.
General Technical Data
| Power supply | 12-32 V |
| Operating temperature | -20°C to +50°C |
| Weight | 1,400 g |
| Overall power consumption | 10 W |
| Sensor tube dimensions (L × D) | 2,074 × 29 mm |
FGM3D/75 Fluxgate
| Number and orientation of sensors | 5 sensors, laid horizontal, parallel |
| Specified measurement range | ±75,000 nT (other ranges on request) |
| Number of sensor axes | 3 |
| Distance between sensors | 500 mm |
| Sensor spacing options (dismountable tube) | 25 cm or 50 cm |
| Swath width | 2.5 m |
| Noise level @1Hz [pT/ (Hz)] | 10 pT < all sensors M1-M5 < 20 pT |
Datalogger
| Power | 50 mA |
| Sensor input | Hard wired, 50 cm sensor cable |
| User interface | Start/Stop button; Webserver |
| Survey mode | Continuous recording while airborne |
| Sampling rate | 200 – 1000 Hz |
| Internal memory | 32 GB (approx. 500h+ recording with 200 Hz) |
| Datalogger dimensions (W × D × H) | 264.5 × 104.5 × 80 mm |
Data Processing
| MagDrone DataTool (included) | Raw data filtering, track & flight direction detection, noise compensation, MagBase or GPS referencing, export, preview |
| MAGNETO® Software | Data interpretation, visualisation, object calculation, etc. |
| Live output | Via Ethernet interface |
GPS Add-on
| EMLID M2 / RS2 | Interface for EMLID M2 multiband RTK GPS with optional EMLID RS2 base station |
Documentation & data sets
What is the MagDrone R4 used for?
The MagDrone R4 is a UAV / drone magnetometer survey kit. SENSYS says it can be used for magnetic cartographies, mine exploration, area scanning for bombs and ammunition (UXO), and preventive checks and surveillance of areas and camps against intrusion. Listed applications:
- Survey and surveillance
- Mine exploration, tracking and monitoring at flexible heights
- UXO detection on unreachable, flooded or mined areas
Key features
- Dismountable system with 5 fluxgate sensors. The sensor tube allows sensor spacing of either 25 cm or 50 cm, giving a 2.5 m swath width.
- Made for the DJI M300
- 200 Hz recording rate
- Data loss prevention
- WLAN interface
- Data processing tool (MagDrone DataTool)
What are the main benefits of the R4?
- Universal usage: UXO search, exploration and surveillance.
- Ideal for DJI M300/M350: the R4 gets on board any professional UAV easily, but especially the DJI M300/M350.
- Straight interface: access the R4 via WLAN for configuration or start/stop triggers.
- Simple installation: strap it to your UAV landing gear with 4 cable ties.
- 1-button operation: the R4 has only one button, to make operation as simple as possible.
- Noise cancellation: with a 200 Hz sampling rate, the R4 can filter out noise from infrastructure, net frequencies or UAV motors. This is why it can be installed directly on the UAV's landing gear for a very compact set-up.
- Powerful DataTool: the free MagDrone DataTool lets you delete tracks, compensate, filter and export in various formats.
What do you need to run the MagDrone R4?
- Drone: the R4 is made for the DJI M300 and is ideal for the DJI M300/M350. SENSYS describes it as attachable to any UAV with a 1,400 g payload; its feature list says 1.5+ kg. Check your drone's payload against the higher figure.
- Mounting: strap it to the UAV landing gear with 4 cable ties. SENSYS's datalogger installation drawing shows a DJI M300 mount.
- Power: 12-32 V, 10 W overall power consumption.
- Control and data: start/stop button and a webserver, reached over WLAN for configuration or start/stop triggers. Live output is via the Ethernet interface.
- GPS (optional): an interface for the EMLID M2 multiband RTK GPS, with an optional EMLID RS2 base station.
- Camera: constant motor noise is filtered out, but do not use a camera gimbal with the R4.
- Software: the MagDrone DataTool is included. SENSYS MAGNETO® software is used for data interpretation, visualisation and object calculation.
How is MagDrone R4 data processed?
The MagDrone DataTool identifies flown tracks, and cuts, filters and compensates the raw data. It handles MagBase or GPS referencing, generates a preview and exports into various formats, so you can process the values further, for example in MAGNETO®.
How does the R4 compare with the R1 and R3?
| MagDrone R1 | MagDrone R3 | MagDrone R4 | |
|---|---|---|---|
| FGM3D/75 fluxgate sensors | 1 | 2 | 5 |
| Sensor carrier | Self-folding carbon fibre arm | Carbon fibre sensor tube, 1,070 × 22 mm | Dismountable sensor tube, 2,074 × 29 mm |
| Weight | 595 g | 690 g (820 g with Li-Ion battery) | 1,400 g |
| Power | 24…48 V DC (XT30) | 11.1 V, 1,950 mAh Li-Ion accumulator | 12-32 V |
| Sampling rate | 200 - 1,000 Hz | 250 Hz (higher rates on request) | 200 – 1000 Hz |
| Live data output | Via UDP | 2 Hz (via Bluetooth) | Via Ethernet interface |
| Internal memory | Not stated | 8 GB | 32 GB |
Values are from each model's SENSYS datasheet. Compare all drone magnetometers.
Why buy the MagDrone R4 from HobiTech?
HobiTech is an Official Partner of SPH Engineering based in Bengaluru, India. Every order comes with a GST invoice, and our local team supports the sensor, the drone and the software. SPH's magnetometer training courses are also available through HobiTech.
Frequently Asked Questions
What can the MagDrone R4 detect?
Everything ferrous (iron). It does not detect metals such as aluminium or gold, as they are only conductive.
How deep can the MagDrone R4 sense?
It depends on the object. The R4 sees a harvester machine from 40 m distance, but a hand grenade from only a few centimetres.
What is the ideal flight height?
For compact objects, as close as possible: 50 cm above ground. For soil structures it can be dozens of metres.
How sensitive are the R4's sensors?
The sensitivity of the installed FGM3D/75 is 0.13 V/µT, and the resolution is better than 150 pT.
Which drone does the MagDrone R4 need?
It is made for the DJI M300 and is ideal for the DJI M300/M350. SENSYS lists the R4 at 1,400 g. It describes the kit as attachable to any UAV with a 1,400 g payload, and its feature list says 1.5+ kg.
How do I buy the MagDrone R4 in India?
Use Request a quote on this page, or call HobiTech on +91 70225 26509. We confirm the price and configuration, and every order comes with a GST invoice.