Sensor

AHRS-M2

0.2° RMS static heading accuracy.

Next-gen adaptive attitude sensing.

AHRS-M2 introduces an adaptive-calibration mode.

0.2° RMS. Industry-leading heading accuracy.

0.2° RMS static heading accuracy, holding under 1.0° RMS across the full -40° to +70°C range, not just at room temperature. That's roughly 7.5 times tighter than a standard-grade micro AHRS.

Precision that holds up off the bench.

AHRS-M2 runs the same AdaptCal and AdaptNav foundation as the rest of the line, paired with a high-resolution, low-noise magnetometer tuned for precision near Earth-field strength. The accuracy number holds on noisy, moving platforms, not just in a lab.

Runs cooler, sleeps deeper.

60 mW operating, with a 16 mW sleep mode for platforms that need to conserve battery between readings. Update rate is selectable between 10 and 100 Hz, so integrators can trade bandwidth for power.

Built to flex.

The 10-pin interface carries two reserved GPIO and a reserved UART. Integrators get headroom for future functionality without a hardware redesign.

KEY FEATURES

  • 12.3 grams
  • 0.2° RMS static heading
  • 10/100 Hz selectable
  • 60 mW / 16 mW sleep
  • 10-pin connector

$1850*

*Single unit pricing shown. For higher volume pricing please contact Twenty-Six Defense Maritime.

CAPABILITIES

  • Hand-held and mounted optical targeting systems
  • Pan and tilt
  • 3-D geospatial surveying
  • Antenna positioning
  • Towed acoustic arrays
  • Unmanned vehicle navigation
  • Platform stabilization
  • Other platforms with motors/electrical noise, and mechanical vibration

The part is not ITAR restricted but covered under EAR classification 7A994.

A license for reexporting may be required.

AHRS-M2 attitude heading reference system
Specifications

Redefining capable

Physical Characteristics

Dimensions (L x W x H)

Mass

Enclosure

Connector

Interface

Baud Rate

Power Supply Input

Input Power, Operating Mode

Input Power, Sleep Mode

Operating and Storage Temperature

Humidity Resistance

Shock Resistance

Vibration Resistance

RoHS Compliant

38.4 x 22.9 x 9.1 mm (1.51 x 0.90 x 0.36 in)

12.3g

Encapsulated

10-pin (two reserved GPIO, one reserved UART)

3.3V logic UART

1.2 to 115.2 kbaud

+4 to +10V DC (unregulated)

60 mW (typical @ 4V)

16 mW (typical @ 4V)

-40° to +85° C

95%, 70° C, 24 hrs (MIL-STD-202G Method 103A, Condition A)

5000g, 1 ms pulse, half-sine wave

5.35 G RMS (MIL-STD-202G Method 214A, Condition I/C)

Yes

Performance Data

Static Heading Accuracy

Static Heading Accuracy, Full Temperature Range

Dynamic Heading Accuracy

Static Pitch/Roll Accuracy

Dynamic Pitch/Roll Accuracy

Pitch/Roll Repeatability

Pitch/Roll Range

Accelerometer Range

Accelerometer Noise Density

Accelerometer Bias Stability

Accelerometer Velocity Random Walk

Gyro Dynamic Range

Gyro Noise Density (RMS)

Gyro Bias Stability

Gyro Angular Random Walk

Magnetic Range

Maximum Magnetic Inclination (Dip)

Update Rate

0.2° RMS

< 1.0° RMS (-40° to +70° C)

1.0° RMS

0.2° RMS

1.0° RMS

0.1° RMS

±90°, ±180°

±4g (±1g)

250 µg/√Hz

0.07441 mg

0.09123 (m/s)/√Hz

±500°/sec (±300°/sec)

0.04°/sec/√Hr

6.415°/Hr

0.2546°/√Hr

±1.2 Gauss (±900 mGauss)

±80°

10/100 Hz selectable

Accessories

USB Cable for AHRS-M2

140-0088-002

Connect M2 compasses to a computer via USB. Communicate with and provide power to unit. Change EEPROM settings. Cannot be used to flash units with a new firmware.

$100

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Development Kit for AHRS-M1 & AHRS-M2

The development kit can be used to quick start an evaluation of the AHRS-M1 or AHRS-M2 compass products. This kit can be used with the Twenty-Six Defense Maritime provided Spartacus GUI or a general-purpose serial terminal such as Tera Term on Windows or CuteCom on Linux. Spartacus can show real-time graphs of the AHRS data and the data can be streamed using the serial terminals.

$250

View product
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