LPMS Inertial Measurement Units (IMU) and Inclinometers
An inertial measurement unit (IMU) measures angular rate and acceleration on three axes. A 9-axis IMU adds a magnetometer, and an AHRS (attitude and heading reference system) fuses all three sensors into drift-free roll, pitch and yaw. Every Xikaku LPMS sensor is both: the sensor fusion runs on a 32-bit DSP inside the housing, so the host receives raw data, Euler angles and quaternions directly over USB, CAN, RS232, RS485, TTL, Bluetooth or Wi-Fi. The catalog covers wearable Bluetooth sensors, OEM boards, IP67 industrial units, a navigation IMU with a dedicated heading gyroscope, a GNSS-integrated unit and a dual-axis inclinometer, all configurable through LPMS-Control or FusionHub. Pick a product below for full specifications, or start with What is an IMU? and How to choose an IMU.
Motion & Orientation
For measuring how an object, person, or machine is moving and oriented in space - wearables, motion capture, machine tracking, research.
LPMS-B2 - Bluetooth 9-axis IMU
3D IMU / AHRS with wireless Bluetooth connectivity and on-board data recording. 9-axis fusion at up to 400 Hz.
LPMS-U3 - USB / CAN Bus 9-axis IMU
Miniature 9-axis IMU with USB, RS232, TTL, and CAN Bus interfaces. Up to 500 Hz.
LPMS-CURS3 - OEM 9-axis IMU board
Bare-board 9-axis IMU / AHRS at 22 × 28 mm and 4 g with USB plus CAN, RS232 or TTL. Up to 500 Hz.
Industrial & Outdoor
Rugged sensors built for harsh environments - IP67 housings, wide temperature ranges, multi-protocol connectivity.
LPMS-AL3 - Waterproof 9-axis IMU
9-axis IMU / AHRS in an IP67 aluminum enclosure. CAN Bus, RS232, TTL / UART, or USB. Up to 500 Hz.
Positioning & Navigation
Sensors that fuse inertial data with external signals - GNSS, Wi-Fi - for absolute positioning in the world.
LPMS-IG1 - High-precision 9-axis IMU
Dual-gyroscope 9-axis IMU with flexible range and low-noise orientation data. IP67, USB / CAN / RS232 / RS485.
LPMS-IG1P - 9-axis IMU with GPS / RTK-GPS
9-axis IMU with integrated GNSS receiver (GPS, GLONASS, Galileo, BeiDou, QZSS) for outdoor localization.
LPMS-NAV3 - 6-axis navigation IMU
6-axis IMU with a dedicated 24-bit heading gyroscope for AGV and mobile robot navigation. IP67, RS232 / RS485 / RS422 / TTL / CAN.
Structural Monitoring
Purpose-built inclination and tilt measurement for engineering, energy, and infrastructure.
LPMS-IG1W - Wi-Fi 9-axis IMU
High-precision 9-axis IMU with Wi-Fi connectivity for industrial IoT and wireless tracking. IP67.
LPMS-INC1 - Dual-axis inclinometer
High-precision MEMS inclinometer, ±90° on two axes at 0.011° RMS. IP67, RS232 or CAN.
Compare LPMS IMU models
| Model | Sensors, rate, static accuracy | Interfaces | Housing, size, weight | Typical use |
|---|---|---|---|---|
| LPMS-B2 | 9-axis + barometer · 400 Hz · < 0.5° | Bluetooth Classic 2.1, BLE 4.1 | Plastic · 39 × 39 × 8 mm · 12 g (OEM 2 g) | Wearables, motion capture, AR / VR |
| LPMS-U3 | 9-axis + barometer · 500 Hz · < 0.5° | USB + CAN, RS232 or TTL | Plastic · 34 × 34.5 × 15.7 mm · 17.6 g | Robotics, machine tracking, research |
| LPMS-CURS3 | 9-axis + barometer · 500 Hz · < 0.5° | USB + CAN, RS232 or TTL | Bare PCB · 22 × 28 × 7.65 mm · 4 g | OEM integration |
| LPMS-AL3 | 9-axis · 500 Hz · < 0.5° | CAN, RS232 or TTL, plus USB | IP67 aluminum · 50 × 42 × 25 mm · 107 g | Industrial and outdoor machinery |
| LPMS-IG1 | 9-axis, dual gyroscopes · 500 Hz · < 0.3° | USB + CAN, RS232 or RS485 | IP67 aluminum · 51 × 45 × 24 mm · 74-114 g | High-precision tracking, AGV dead reckoning |
| LPMS-IG1P | 9-axis + GNSS (25 Hz) · 500 Hz · < 0.26° roll, < 0.18° pitch | USB + CAN, RS232 or RS485 | IP67 aluminum · 51 × 45 × 24 mm · 118 g | Outdoor navigation, vehicles, AGVs |
| LPMS-IG1W | 9-axis, dual gyroscopes · 500 Hz · < 0.3° | Wi-Fi (TCP/IP, MQTT) + USB | IP67 aluminum · 51 × 45 × 24 mm · 115 g | Wireless industrial IoT, vibration monitoring |
| LPMS-NAV3 | 6-axis + 24-bit heading gyroscope · 500 Hz | RS232, RS485, RS422, TTL or CAN | IP67 aluminum · 50 × 42 × 25 mm · 107 g | AGV and mobile robot heading |
| LPMS-INC1 | Dual-axis inclinometer · 500 Hz · 0.011° RMS | RS232 or CAN | IP67 aluminum · 74 × 40 × 28.5 mm · 184 g | Tilt monitoring, construction, energy |
Dynamic accuracy is < 2° RMS for the standard 9-axis models and < 1° RMS for the LPMS-IG1 and LPMS-IG1W. All 9-axis models output raw data, Euler angles and quaternions at configurable rates; datasheets are linked on each product page.
Which IMU do I need?
- Body-worn or cable-free: LPMS-B2 (Bluetooth, up to 7 units per host) or LPMS-IG1W (Wi-Fi, IP67).
- Wired, compact, on a bench or inside a machine: LPMS-U3, or the bare-board LPMS-CURS3 for your own PCB or enclosure.
- Wet, dusty or vibrating environments: LPMS-AL3, LPMS-IG1 or LPMS-NAV3 in IP67 aluminum with M12 connectors.
- Heading that stays put on a mobile robot or AGV: LPMS-NAV3, whose dedicated single-axis gyroscope is built for yaw.
- Absolute position outdoors: LPMS-IG1P with multi-constellation GNSS and IMU / odometry dead reckoning.
- Tilt only: LPMS-INC1.
The full decision process, including interface protocols and software support, is in How to choose an IMU. If you are new to inertial sensing, start with What is an IMU?.
Buy LPMS IMUs in the United States
Xikaku sells and supports LPMS sensors from Venice, California. The LPMS-B2, LPMS-U3, LPMS-AL3, LPMS-IG1, LPMS-IG1P and LPMS-IG1W are stocked in our online shop and ship across the US. For the LPMS-NAV3, LPMS-CURS3 and LPMS-INC1, volume pricing, evaluation units or custom firmware, contact us.