---
product_id: 227276049
title: "WT901C-485 mpu9250 High-Precision Gyro+Accelerometer+Angle+Magnetometer,9-Axis Digital Compass (Kalman Filtering, Modbus),Triple-Axis Tilt Angle Inclinometer for PC/Arduino/Raspberry Pi"
brand: "witmotion"
price: "$U3678"
currency: UYU
in_stock: true
reviews_count: 5
category: "Witmotion"
url: https://www.desertcart.uy/products/227276049-wt901c-485-mpu9250-high-precision-gyro-accelerometer-angle-magnetometer-9
store_origin: UY
region: Uruguay
---

# 9-axis sensor fusion RS485 Modbus multi-connect Kalman filtering tech WT901C-485 mpu9250 High-Precision Gyro+Accelerometer+Angle+Magnetometer,9-Axis Digital Compass (Kalman Filtering, Modbus),Triple-Axis Tilt Angle Inclinometer for PC/Arduino/Raspberry Pi

**Brand:** witmotion
**Price:** $U3678
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your motion sensing game with precision that professionals demand!

## Quick Answers

- **What is this?** WT901C-485 mpu9250 High-Precision Gyro+Accelerometer+Angle+Magnetometer,9-Axis Digital Compass (Kalman Filtering, Modbus),Triple-Axis Tilt Angle Inclinometer for PC/Arduino/Raspberry Pi by witmotion
- **How much does it cost?** $U3678 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/227276049-wt901c-485-mpu9250-high-precision-gyro-accelerometer-angle-magnetometer-9)

## Best For

- witmotion enthusiasts

## Why This Product

- Trusted witmotion brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Advanced Sensor Fusion:** 9-axis MPU9250 with Kalman filtering ensures ultra-stable, low-noise data output.
- • **Precision You Can Trust:** Static accuracy down to 0.05° for rock-solid measurements.
- • **Versatile Compatibility:** Plug & play with PC, Arduino, and Raspberry Pi for rapid prototyping and deployment.
- • **Lifetime Support & Warranty:** 12-month warranty plus lifetime expert customer service to keep you ahead.
- • **Seamless Multi-Device Integration:** Connect up to 128 units simultaneously via RS485 Modbus for scalable projects.

## Overview

The WitMotion WT901C-485 is a high-precision 9-axis digital compass and inclinometer featuring gyro, accelerometer, magnetometer, and angle measurements. It leverages Kalman filtering and RS485 Modbus communication to deliver stable, low-noise data with static accuracy as fine as 0.05°. Designed for PC, Arduino, and Raspberry Pi integration, it supports multi-device connections up to 128 units simultaneously. Backed by an 8-year R&D legacy and lifetime customer support, this sensor is engineered for demanding industrial and scientific applications.

## Description

WitMotion WT901C-485 mpu9250 High-Precision Gyro+Accelerometer+Angle+Magnetometer,9-Axis Digital Compass (Kalman Filtering, Modbus),Triple-Axis Tilt Angle Inclinometer for PC/Arduino/Raspberry Pi: desertcart.com: Industrial & Scientific

Review: Not for the faint of heart - Incomprehensible manual, never achieved connection with an Arduino
Review: Horrible Quality Control, ordered two, one failed during testing. This is what I found! - I opened the case and removed the failed part, I don't know why it failed, but there was a little chunk of solder floating around in the case. It also became clear for reasons unknow the manufacture had "tried" to lift off, or scrape off different sections of the copper land. But they left part of it sticking up, soldering very rough on several areas. I don't know why it failed, but very likely the solder chunk shorted out something.

## Features

- 【 High Performance 】Rock-solid data output: RS485 Modbus Pitch Roll Yaw (X Y Z axis) Acceleration + Angular Velocity + Angle + Magnetic Field
- 【 Robust Design 】X, Y-axis: 0.05° (Static) , X, Y-axis: 0.1° (Dynamic), Long term measurement, Support multi-connection up to 128units simultaneously via WITMOTION PC software or other MCU
- 【 WITMOTION Advantage 】8-year Professional Attitude Measuring Solution Provider, sensors integrated R&D dynamic fusion algorithm and Kalman Filtering ensuring stable data output and excellent bias stability, low noise level, increasing measurement accuracy
- 【 Worry-free Support 】12-month warranty, lifetime friendly customer service by WitMotion team. Option 1. The tutorial link is printed on the guiding card inside the package. Option 2. search wit-motion(dot)com and download the complete tutorial. Option 3. contact us if you need any help, support (at) wit-motion (dot) com
- 【 What You Get 】1 x WitMotion WT901CRS485 Modbus Accelerometer sensor+ 1* 4-PIN Dupont cable +1 x Welcome guide

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08HD8HWRW |
| Best Sellers Rank | #217,106 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #85 in Acceleration Sensors |
| Date First Available | November 27, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.13 ounces |
| Manufacturer | WitMotion Shenzhen Co.,Ltd |
| Package Dimensions | 2.99 x 2.95 x 0.87 inches |

## Images

![WT901C-485 mpu9250 High-Precision Gyro+Accelerometer+Angle+Magnetometer,9-Axis Digital Compass (Kalman Filtering, Modbus),Triple-Axis Tilt Angle Inclinometer for PC/Arduino/Raspberry Pi - Image 1](https://m.media-amazon.com/images/I/51ykVQBycPL.jpg)

## Questions & Answers

**Q: we need to connect two inclinometers via a rs 485 converter, what other accessories do we need?**
A: Oye, señor o manda,
Sí, puede usar nuestro convertidor USB-485 para conectarse con nuestro WT901C-485.
Por favor revise el enlace para ordenar.
https://www.amazon.es/dp/B07VMFJ5Y3?ref=myi_title_dp
Si necesitas cualquier otra ayuda, por favor no dudes en decírmelo. support(at)wit-motion(dot)com
Equipo de apoyo

**Q: Please confirm the date of delivery to Poland, thank you**
A: The date is displayed on the product details page (for reference only), you can also consult Amazon's official customer service.
Thank you for your understanding and support.

**Q: I'm interested in using this sensor with an Arduino Nano. Are there any arduino libraries or code examples?**
A: Instead of the nano I've used SeedStudio XIAO 52840 Sense (Available from Amazon)  The Sense version has integrated accelerometers. , BLE, WIFI, and LiPo battery charger.  It can be used with Arduino IDE and has sample programs to capture sensor data.

**Q: Can this be used with open source flight controllers such as inav or betaflight?**
A: Thank you for your question. This requires the adaptation of the protocol. The specific use effect is subject to the actual situation.

## Customer Reviews

### ⭐ Not for the faint of heart
*by W***. on April 20, 2025*

Incomprehensible manual, never achieved connection with an Arduino

### ⭐ Horrible Quality Control, ordered two, one failed during testing. This is what I found!
*by N***S on October 7, 2022*

I opened the case and removed the failed part, I don't know why it failed, but there was a little chunk of solder floating around in the case. It also became clear for reasons unknow the manufacture had "tried" to lift off, or scrape off different sections of the copper land. But they left part of it sticking up, soldering very rough on several areas. I don't know why it failed, but very likely the solder chunk shorted out something.

### ⭐ No computer connection.
*by J***P on December 6, 2022*

Not wireless. Wires dangling out that you have to figure out what to do with them. Useless for me. Just use free cell phone app. I think it can do everything this device might be able to do. Save your money.

## Frequently Bought Together

- WitMotion WT901C-485 mpu9250 High-Precision Gyro+Accelerometer+Angle+Magnetometer,9-Axis Digital Compass (Kalman Filtering, Modbus),Triple-Axis Tilt Angle Inclinometer for PC/Arduino/Raspberry Pi
- WITMOTION USB to RS485 Modbus RTU UART Converter Cable with CH340 Chip, Terminated by 4 Way Female Socket Header, Serial Adapter (1m/3.28ft, Black), Windows 10,8,7, Linux MAC OS

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-10*