01 · AttitudeSMT · Reference
IM19
The original tilt-compensation reference
Units shipped 100K+Roll/Pitch dyn 0.05° 2σPatents WW
04 · Attitude · SMT · Precision agriculture
IM23AG
Tilt-compensation IMU for ag & auto-steering
SMT MEMS IMU fused with GNSS RTK, engineered for tilt RTK surveys, agricultural machine automation, and dead reckoning. Delivers roll & pitch to ±0.05°, heading to ±0.5°, and 1 cm tilt-survey accuracy at up to 30° pole tilt — with 1-second initialization. Auto-steering yaw accuracy 0.5° (95%). Patents in US and China.
Roll/Pitch 0.05°Tilt survey 1 cm @ 30°Ag yaw 0.5° (95%)
Overview
About the IM23AG
The IM23AG IMU module fuses data from MEMS accelerometer and gyroscope sensors with GNSS RTK data to deliver high-precision attitude measurement, with roll and pitch accurate to within 0.05 degrees.
This accuracy has found IM23AG widespread use in industrial applications such as tilt RTK surveys, agriculture machine automation, and dead reckoning. IM23AG is protected under various international patents (US US11409001B2, Chinese CN110017849B, etc.).
Specifications
IM23AG technical specifications
| Acceleration range | ±8 g |
|---|---|
| Gyroscope range | ±1000 deg/s |
| Attitude accuracy | ±0.05 deg (95%) |
| Heading accuracy | ±0.5 deg (95%) |
| Accelerometer bias accuracy | ±5 mg |
| Gyroscope bias accuracy | ±0.2 deg/s |
| Tilt survey accuracy | 1 cm with up to 30° tilt angle for 2 m pole |
| Tilt survey initialization time | 1 second (95%) |
| Ag auto steering yaw accuracy | 0.5° (95%) |
| Supply voltage | 3.0 – 3.6 V (3.3 V typ.) |
|---|---|
| Current consumption | 120 – 140 mA (130 mA typ.) |
| Port voltage | 3.3 V (all ports) |
| Interfaces | UART1, UART2 (GNSS), UART3, CAN, 1PPS |
| Module height | 3.2 ± 0.1 mm |
Source: IM23AG Hardware Integration Guide, v1.4.3 (05-2025). Specifications are subject to change — always confirm against the latest datasheet before designing a module into your product. Request the current revision →