LPMS-URS2: 9-Axis Inertial Measurement Unit (IMU) with USB and RS232 Connectivity

US$ 270



The LP-RESEARCH Motion Sensor with USB and RS232 connectivity version 2 (LPMS-URS2) is a miniature inertial measurement unit (IMU) / attitude and heading reference system (AHRS). The unit is very versatile, performing accurate, high speed orientation measurements. By the use of three separate MEMS sensors (3-axis gyroscope, 3-axis accelerometer and 3-axis magnetometer) low-drift, real-time orientation data around all three axes is achieved. Additionally, temperature and barometric pressure sensors allow accurate measurements of the sensor’s altitude. LPMS-URS2 communicates with host systems either via a USB or RS232 connection for measurement data transfer rates of up to 400Hz. The sensor fits both machine and human motion measurements for size and cost sensitive applications.

The sensor’s RS232 communication uses either our proprietary LP-BUS protocol or alternatively a plain ASCII output format. The unit contains a 32-bit digital signal processor capable of running all calculations on-board in real-time. For more information on our sensor fusion method please refer to the IMUcore description.

See the LPMS-URS2 product page at LP-RESEARCH here.



Communication interface RS232, USB 2.0
Communication protocol LP-BUS
Size 34 x 34.5 x 15.7 mm
Weight 17.6 g
Orientation range Roll: ±180°; Pitch: ±90°; Yaw: ±180°
Resolution < 0.01°
Accuracy < 0. 5° (static), < 2° RMS (dynamic)
Accelerometer 3 axes, ±20 / ±40 / ±80 / ±160 m/s2, 16 bits
Gyroscope 3 axes, ±125 / ±245 / ±500 / ±1000 / ±2000 °/s, 16 bits
Magnetometer 3 axes, ± 4 / ± 8 / ± 12 / ± 16 gauss, 16 bits
Pressure sensor 300 – 1100 hPa
Data output format Raw data / Euler angle / Quaternion
Data transmission rate up to 400 Hz
Power consumption < 145 mW@3.3V
Power supply 5 to 15 V DC (RS232), 5 V DC (USB)
Connector DB9 female (RS232), Micro USB-B (USB)
Case material ABS Plastic shell
Temperature range – 40 to +80 °C
Software C++ library for Windows, LpmsControl software and Open Motion Analysis Toolkit (OpenMAT) for Windows.


1 x LPMS-URS2 sensor
1 x Micro USB cable
1 x User guide card
1 x Warranty service (1 year)

NOTE: Please note that import duties, taxes, and charges are not included in the item price or shipping cost. Please contact us for orders over 50 pieces.