0.2° RMS static heading accuracy.
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
$1850*
*Single unit pricing shown. For higher volume pricing please contact Twenty-Six Defense Maritime.
CAPABILITIES
The part is not ITAR restricted but covered under EAR classification 7A994.
A license for reexporting may be required.

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
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
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
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
Get in touch with one of our experts to get more details and availability about the AHRS-M2.