---
product_id: 539063350
title: "WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino"
brand: "witmotion"
price: "₨55608"
currency: LKR
in_stock: true
reviews_count: 5
category: "Witmotion"
url: https://www.desertcart.lk/products/539063350-witmotion-9-axis-inclinometer-module-wt901-high-accuracy-acceleration-gyroscope
store_origin: LK
region: Sri Lanka
---

# 0.05° ultra-precise angle accuracy Kalman filter for stable, low-noise fusion 200Hz high-speed data output WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino

**Brand:** witmotion
**Price:** ₨55608
**Availability:** ✅ In Stock

## Summary

> 📊 Elevate your projects with precision that moves as fast as you do!

## Quick Answers

- **What is this?** WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino by witmotion
- **How much does it cost?** ₨55608 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/539063350-witmotion-9-axis-inclinometer-module-wt901-high-accuracy-acceleration-gyroscope)

## 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

- • **Compact Powerhouse:** Tiny 15.24mm² footprint with low 20mA consumption fits effortlessly into your next-gen robotics or flight control system.
- • **Seamless Sensor Fusion:** Advanced Kalman filtering merges gyro, accelerometer, and magnetometer data for rock-solid stability and minimal noise.
- • **Plug & Play Versatility:** Supports UART and I2C interfaces with ready-to-use sample code—perfect for PC, Android, Arduino, and embedded projects.
- • **Lightning-Fast Data Stream:** Up to 200Hz output rate ensures real-time responsiveness for dynamic environments and control systems.
- • **Pinpoint Precision in Motion:** Experience industry-leading 0.05° accuracy on X and Y axes for flawless angle measurement.

## Overview

The WITMOTION WT901 is a compact 9-axis inclinometer module integrating a 3-axis accelerometer, gyroscope, and electronic compass with MPU9250 sensor. Featuring a Cortex-M0 processor and Kalman filtering, it delivers ultra-precise 0.05° angle accuracy and up to 200Hz data output. Designed for seamless integration with PC, Android, and Arduino platforms, it offers versatile UART and I2C interfaces, low power consumption, and robust stability—ideal for advanced robotics, flight control, and dynamic attitude measurement applications.

## Description

(1)JY-901 Gyroscope is good solution for angle measuring，acceleration measurement and angular velocity measurement,It packs a 3-axis gyro and a 3-axis accelerometer and 3-axis magnetic. (2) Kalman filter combines the gyro and accelerometer to get high precision angle measurement,it can be used such as four-axis flight control and self-balancing robot, angle measurement and depth measuring and so on. (3)The module can get accurate attitude in a dynamic environment. Attitude measurement precision is 0.05degrees. (4)Using high-precision gyro accelerometer MPU9250, read the measurement data by serial port and IIC port . With advanced digital filtering technology, reduce the measurement noise and improve measurement accuracy. (5)Using stamps holes gold plating, quality assurance, can be embedded in the user's PCB board Main Feature: 1 Input voltage: 3V-6V 2 Consumption current: typical 20mA 3 Volume: 15.24mm X 15.24mm X 2mm 4 Measuring : Attitude angle: 3 axis Acceleration: 3 Axis Angular Velocity: 3 Axis Magnetic 5 Range: Acceleration: ± 16g, angular velocity: ± 2000 ° / s. 6 The data output frequency can reach 200Hz 7 Data Interface: Serial (TTL level), I2C (directly connected MPU9250, no attitude output). 8 Baud rate (baud rate 2400-921600 kps. deault 9600kps). 9 Provide single-chip analytical sample code. 10 With GPS connectivity. Acceptable in line with NMEA-0183 standard GPS data 11 4 way expansion port for analog input and digital input and output Note:Angle of Z axis will be accurate because of adding magnetic field correction .Requiring the magnetic unaffected. Packing list (1)JY901 Module 1 PCS (2)USB-TTL module 1PCS DownloadJY901 Gyroscope https://drive.google.com/file/d/0B8PmY6nhQadKLWdxN2VNY1E1OWc/view? usp=sharingserial port tool:https://drive.google.com/file/d/0B8PmY6nhQadKTXBjNUFmSktwQUE/view? usp=sharing

Review: Excellent job on how these guys have made such a complicated device so easy to use. There is a lot going on with the fusion algorithms that go into this and having done this myself with all the code that is involved in getting this to work, these guys have removed a lot of the complexity and provided a fairly easy-to-use interface. Very good documentation (assuming you can find it all) and good videos made it fairly straight forward to get it to work OOB (out-of-the-box) and calibrate it. From what I have seen from using competing devices, this by far is the easiest to use and get working - I highly recommend it! Having an I2C and a UART interface is a huge plus - doesn't take long to get it up and running and providing meaningful results.
Review: Works great! Very easy to get going. Just gave the manual to Claude Code or Codex to write the code. Was up and working in a couple of hours on an ESP32-S3. It's very accurate, low power and the form factor is amazing. Will buy again.

## Features

- 【 High Performance 】Rock-solid data output: 3-axis XYZ (Pitch Roll Yaw) Acceleration+ Gyro+ Angle+ Magnetic field+Quaternion, measurement range and output rate ( 0.2-200Hz) selectable
- 【 Robust Design 】 Cortex-M0 core processor, highly-integrated MEMS, and Kalman Algorithm combine to deliver measurement accuracy at 0.05 degree(X, Y-axis), small in size, diverse interface, professional for customer's integration project
- 【 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 WT901 TTL Accelerometer sensor+ 2* Six pin male header (1x6) +1 x Welcome guide (USB-UART converter not included )

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GBRTB5K |
| Are Batteries Included | No |
| Brand | WITMOTION |
| Color | Black |
| Computer Memory Type | DDR SDRAM |
| Customer Reviews | 4.1 4.1 out of 5 stars (54) |
| Date First Available | 30 September 2019 |
| Graphics Card Description | Integrated |
| Graphics Card Interface | Integrated |
| Graphics Chipset Brand | TDK Corporation |
| Graphics Coprocessor | Integrated Graphics |
| Graphics RAM Type | GDDR6 |
| Hard Disk Description | External USB 2.0 |
| Hard Drive Interface | USB 2.0 |
| Item Weight | 9 g |
| Item model number | WT901 |
| Manufacturer | WitMotion |
| Maximum Memory Supported | 16 GB |
| Memory Technology | DDR4 |
| Operating System | android |
| Processor Brand | ARM |
| Processor Count | 1 |
| Processor Socket | LGA 1151, AM4 |
| Processor Speed | 1 GHz |
| Processor Type | Core i7-3770 |
| Product Dimensions | 1.52 x 0.2 x 1.52 cm; 9 g |
| RAM Size | 16 GB |
| Resolution | 3840x2160 |
| Screen Resolution | 3840 x 2160 |
| Series | WT901 |
| Wireless Type | Bluetooth |

## Product Details

- **Brand:** WITMOTION
- **CPU model:** Core i7-3770
- **CPU speed:** 1 GHz
- **Graphics card description:** Integrated
- **Graphics co-processor:** Integrated Graphics
- **Installed RAM memory size:** 1 GB
- **Memory storage capacity:** 1 TB
- **Operating system:** android
- **Personal computer design type:** Stick PC
- **Specific uses for product:** Business

## Images

![WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino - Image 1](https://m.media-amazon.com/images/I/51k3AjMwOYL.jpg)
![WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino - Image 2](https://m.media-amazon.com/images/I/61AaU5H7Z9L.jpg)
![WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino - Image 3](https://m.media-amazon.com/images/I/61BxHuD07zL.jpg)
![WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino - Image 4](https://m.media-amazon.com/images/I/61tZv254vWL.jpg)
![WITMOTION 【9-Axis Inclinometer Module】WT901 High-Accuracy Acceleration+Gyroscope+Angle (XY 0.05° Accuracy)+Electronic Compass with Kalman Filtering, MPU9250 200Hz AHRS IMU for PC/Android/Arduino - Image 5](https://m.media-amazon.com/images/I/61zsBF+SyEL.jpg)

## Questions & Answers

**Q: Where is the code to interface to Arduino as promised above?**
A: I gave up and sent it back. Customer support was non existent. Well, they responded, but the communication gap was so great, I never received an answer.

**Q: Does this unit support external GPS !?**
A: No

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***. on 15 March 2023*

Excellent job on how these guys have made such a complicated device so easy to use. There is a lot going on with the fusion algorithms that go into this and having done this myself with all the code that is involved in getting this to work, these guys have removed a lot of the complexity and provided a fairly easy-to-use interface. Very good documentation (assuming you can find it all) and good videos made it fairly straight forward to get it to work OOB (out-of-the-box) and calibrate it. From what I have seen from using competing devices, this by far is the easiest to use and get working - I highly recommend it! Having an I2C and a UART interface is a huge plus - doesn't take long to get it up and running and providing meaningful results.

### ⭐⭐⭐⭐⭐ Review
*by J***R on 8 October 2025*

Works great! Very easy to get going. Just gave the manual to Claude Code or Codex to write the code. Was up and working in a couple of hours on an ESP32-S3. It's very accurate, low power and the form factor is amazing. Will buy again.

### ⭐⭐ Review
*by J***Y on 25 July 2025*

I have now connected the device to a PC through the 6:1 USB adapter and the Witmotion PC software shows me the attitude of the sensor which is promising. I would now like to use the device with an Arduino MCU board and the Arduino IDE but so far I have not been able to find any suitable Arduino example software. I have found Arduino software for the WT901JY (6 axis version), this does not seem to compile, a library file seems to be missing. If I can eventually get this working I will update this review.

## Frequently Bought Together

- [Arduino Accelerometer Sensor+Inclinometer] WT901 High-Accuracy 3-axis Acceleration+Gyroscope+Tilt Angle +Magnetometer with Kalman Filtering, 9-axis MPU9250 USB 200Hz IMU Raspberry Pi AHRS Module
- HiLetgo 3pcs GY-521 MPU-6050 MPU6050 3 Axis Accelerometer Gyroscope Module 6 DOF 6-axis Accelerometer Gyroscope Sensor Module 16 Bit AD Converter Data Output IIC I2C for Arduino
- WitMotion USB-UART Converter 3-in-1 Multifunctional Serial Adapter, with CH340 Chip, Compatible with Windows 7/8/10, Linux, Arduino, 300-1.5 Mbps Baud Rates, 12-Month Warranty

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-02*