--- product_id: 227276049 title: "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" price: "£41.96" currency: GBP in_stock: true reviews_count: 5 url: https://www.desertcart.co.uk/products/227276049-witmotion-wt901c-485-mpu9250-high-precision-gyro-accelerometer-angle-magnetometer store_origin: GB region: United Kingdom --- # RS485 Modbus multi-connect 9-axis sensor fusion Kalman filtering tech 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 **Price:** £41.96 **Availability:** ✅ In Stock ## Summary > 🧠 Elevate your projects with precision sensing that never quits! ## Quick Answers - **What is this?** 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 - **How much does it cost?** £41.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/227276049-witmotion-wt901c-485-mpu9250-high-precision-gyro-accelerometer-angle-magnetometer) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Integration:** Plug & play with PC, Arduino, Raspberry Pi via RS485 Modbus - • **Scalable Connectivity:** Supports up to 128 units simultaneously for complex setups - • **Advanced Sensor Fusion:** 9-axis gyro, accelerometer, magnetometer with Kalman filtering for noise-free data - • **Precision You Can Trust:** Ultra-stable 0.05° static accuracy for pinpoint orientation - • **Expert-Backed Reliability:** 8 years of R&D excellence with lifetime customer support ## Overview The WitMotion WT901C-485 is a high-precision 9-axis digital compass and inclinometer featuring gyro, accelerometer, and magnetometer sensors. It delivers rock-solid data with Kalman filtering and supports RS485 Modbus for multi-device connectivity, making it ideal for professional-grade PC, Arduino, and Raspberry Pi applications. ## Description Product description WITMOTION Attitude Sensor Series WT901 Accelerometer WT901BLECL Inclinometer WT901C-TTL Digital Sensor Military-grade HWT901B WTGAHRS2 GPS IMU 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 | |---------------|-------| | Customer Reviews | 2.3 out of 5 stars 9 Reviews | ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51ykVQBycPL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/61EEw+7qeLL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71zgbtM7YWL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/71jL3FM3rYL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/61tZv254vWL.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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/227276049-witmotion-wt901c-485-mpu9250-high-precision-gyro-accelerometer-angle-magnetometer](https://www.desertcart.co.uk/products/227276049-witmotion-wt901c-485-mpu9250-high-precision-gyro-accelerometer-angle-magnetometer) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-20*