HARDWARE / PRODUCTAdded 23 Aug 2026

Mag648 / Mag649®

Bartington Instruments
Mag648 / Mag649®

The Mag648 and Mag649 are compact, low-noise, three-axis fluxgate sensors designed for magnetic field measurements from DC up to 1kHz, ideal for battery-powered applications.

Typed specifications50 values

Discloses 10 of 11 fields engineers filter by in this category (category median 8).

Mass
120 g
datasheet p.5 120 g Mag648/649 standard and FL, approximate  |  330 g Mag648S / Mag649S, approximate  |  330 g Mag648S/Mag649S (approximate)  |  200 g Mag648U / Mag649U, approximate  +1
Measurement range
60 µT
datasheet p.4 60 µT Mag648  |  100 µT Mag648 and Mag649, ±100μT option  |  60 µT Mag648 and Mag649, ±60μT option  |  200 µT Mag649 only, ±200μT option  +1
Envelope (L×W×H)
30 x 32 x 70mm
datasheet p.5 30 x 32 x 70mm (W x H x L, excl. cable) Mag648/649 standard and FL  |  40 x 40 x 141mm Mag648S / Mag649S submersible  |  40 x 40 x 141mm Mag648S/Mag649S (W x H x L)  |  29 x 23 x 66mm Mag648U / Mag649U unpackaged  +1
Resolution
100 nT
Offset (in zero field) · datasheet p.4
Output data rate
1 000 Hz
datasheet p.4 30 Hz Bandwidth (-3dB): Mag648
Noise density
0.01 nT/√Hz
max · Mag649L low noise, at 1Hz · datasheet p.4 0.01–0.05 nT/√Hz Mag648B / Mag649B basic noise, at 1Hz
Supply voltage
3.5–15 V
DC · datasheet p.5
Power consumption
0.01 W
datasheet p.5 0.011 W Mag648 (basic noise) in zero field  |  0.019 W Mag649® (low noise & ±200μT) in zero field  |  0.015 W max · low power: <15mW consumption
Operating temperature
-40–70 °C
datasheet p.5
Sensor type
fluxgate
three-axis fluxgate sensors · datasheet p.2
Axes
3
right hand XYZ co-ordinate system · datasheet p.4
Output type
analog
±3V balanced differential, each output 0.15V to 3.15V · datasheet p.5
Connector
Binder 99 9125 00 08
datasheet p.5 Binder 99 9125 00 08 Mag648 / Mag649 standard  |  Flying leads 8x0.22mm2 Mag648FL / Mag649FL  |  Flying leads 8x0.22mm Mag648FL/Mag649FL  |  SubConn MCBH10FNM Mag648S / Mag649S  +3
Survival temperature
-40–60 °C
datasheet p.5 -40–60 °C storage
Intended use
other
surveillance systems, magnetic field measurements in remote l… · datasheet p.3
Configuration
integrated (sensor + electronics)
standard / flying lead / submersible / unpackaged versions · datasheet p.5
Zero offset
100 nT
Offset (in zero field) · datasheet p.4 100 nT offset in zero field ±100nT
Linearity error
0.003 %
least squares fit · datasheet p.4
Axis orthogonality error
1 °
max · datasheet p.4
Bandwidth
30 Hz
min · Mag648, -3dB · datasheet p.4 1 Hz min · Mag649, -3dB

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier20 lines, in the manufacturer's own wording
Power consumption
<15 mW
Noise (low noise version)
<10pTrms/√Hz at 1 Hz
Bandwidth (Mag648)
to 30 Hz
Bandwidth (Mag649®)
to 1 kHz
Measuring range
±60µT or ±100µT
Number of axes
Three (right hand XYZ co-ordinate system)
Polarity
+ve non-inverting output when pointing North
Bandwidth
>1 kHz
Measurement noise floor
≤10pTrms/√Hz at 1 Hz
Scaling
50 mV/μT, 30 mV/μT, 15 mV/μT
Scaling temperature coefficient
100ppm/°C
Start-up time
150 ms
Warm-up time
15mins
Offset (in zero field)
±100nT
Scaling error
±0.5% at DC
Orthogonality error
<1°
Linearity error
0.0033% (least squares fit)
Frequency response (<5% deviation from DC)
DC to 100 Hz
Hysteresis
<2nT at 1 x full scale (when powered)
Excitation breakthrough
<20 mV pk-pk at 8.192 kHz typical

About

The Mag648 and Mag649 three-axis fluxgate sensors from Bartington Instruments provide low noise magnetic field measurements across a frequency range from DC up to 1kHz. These sensors are characterized by exceptionally low power consumption, typically less than 15mW, and a compact size, making them highly suitable for applications where battery power is critical. Such applications include surveillance systems, remote deployment scenarios, and vehicle monitoring. The Mag648 offers a bandwidth up to 30Hz, while the Mag649® extends this to 1kHz. Both models are available in standard, submersible, and unpackaged versions, offering flexibility for various integration needs. They provide a measuring range of either ±60µT or ±100µT, with a low noise version achieving less than 10pTrms/√Hz at 1Hz. These features make them versatile for a range of demanding magnetic sensing tasks.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.bartington.com ↗

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