TCM 2.5: A leap forward in back-compatibility.
3-axis Measurement
3D Orientation
Hard-Iron Correction
Integrated Processor
Module

TCM 2.5

Note: This product is designed as a replacement/upgrade module for the TCM2-20 and TCM2-50 in existing applications. New applications should be designed using the TCM 2.6 instead of the TCM 2.5.

The TCM 2.5 is a 3-axis tilt-compensated compass module. The electronically gimbaled compass provides accurate heading, pitch, and roll measurements over a ±50° tilt range.

With built-in hard-iron correction, low power demands, and digital output, the TCM 2.5 is a cost-effective, reliable solution to measure compass heading, tilt, and calibrated or uncalibrated magnetic field intensity in three dimensions.


  • Backward-Compatible Footprint
    6.4 × 5.1 × 1.4 cm
  • Digital Interface
    RS-232 Compatible
    NMEA0183
  • Hard-Iron Calibration
    Built-in algorithms correct compass heading near magnetic sources and materials
  • High Precision
    Heading accuracy 0.8°
  • High Resolution
    Compass heading 0.1°
  • High Resolution Field Measurement
    0.05 µT (0.0005 Gauss)
  • Low Power
    < 20 mA typical draw
  • Wide Field Measurement Range
    ± 80 µT (± 0.8 Gauss)
  • Wide Temperature Range
    −20 to 70 °C (operational)
  • Full Tilt Compensation
    ± 50°
  • RoHS Compliant

Heading Specifications

Accuracy (RMS) 0.8°
Max Dip Angle 85°
Repeatability (RMS)1 0.1°
Resolution 0.1°

Magnetometer Specifications

Calibrated Field Measurement Range ± 80 µT
Magnetic Repeatability ± 0.1 µT
Magnetic Resolution ± 0.05 µT

Tilt Specifications

Pitch Accuracy 0.2° RMS
Roll Accuracy (RMS) 0.2°
Tilt Range ± 50°
Tilt Repeatability2 0.1°
Tilt Resolution 0.1°

Calibration

Hard Iron Calibration Yes
Soft Iron Calibration No

Mechanical Specifications

Connector for RS-232 Interface 10-Pin
Dimensions (L × W × H) 6.4 × 5.1 × 1.4 cm
Mounting Options Screw
Mount / Standoffs
Horizontal
Weight 20 grams

I/O Specifications

Communication Rate 300 to 115200 baud
Initial Power Up Time < 50 ms
Maximum Sample Rate 8 samples/sec
Output Formats TCM2 Protocol
NMEA0183
Sleep Mode Recovery < 1 ms

Power Specifications

Idle Mode 18 mA
Sleep Mode Current Draw 0.6 mA
Supply Voltage (VDC) 5 V (Regulated)
6 to 18 V (Unregulated)
Typical Current Draw
(Continuous Output)
Maximum: 22 mA
Typical: < 20 mA

Environmental Specifications

Humidity Non-condensing / Qualified to MIL-STD-810F
Operating Temperature Range −20 to 70 °C
Shock 2500 g, per MIL-STD-810F
Storage Temperature Range −40 to 85 °C
Vibration Qualified to MIL-STD-810F

1 Repeatability is based on statistical data at ± 3 sigma limit about the mean
2 Repeatability is based on statistical data at ± 3 sigma limit about the mean