--- product_id: 49311716 title: "BWT901CL Bluetooth 2.0 9 Axis Inclinometer" brand: "witmotion" price: "£62.03" currency: GBP in_stock: true reviews_count: 13 category: "Witmotion" url: https://www.desertcart.co.uk/products/49311716-bwt901cl-bluetooth-2-0-9-axis-inclinometer store_origin: GB region: United Kingdom --- # 0.05° angle accuracy 10m Bluetooth range 200Hz high-stability output BWT901CL Bluetooth 2.0 9 Axis Inclinometer **Brand:** witmotion **Price:** £62.03 **Availability:** ✅ In Stock ## Summary > 📊 Elevate your measurements with precision and wireless freedom — don’t get left behind! ## Quick Answers - **What is this?** BWT901CL Bluetooth 2.0 9 Axis Inclinometer by witmotion - **How much does it cost?** £62.03 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/49311716-bwt901cl-bluetooth-2-0-9-axis-inclinometer) ## 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 - • **Precision in Motion:** Experience ultra-accurate 9-axis sensing with 0.05° angle precision for flawless pitch, roll, and yaw data. - • **Plug & Play Versatility:** Compact surface-mount design with multi-connection support via WITMOTION PC software for effortless integration. - • **Smart Fusion Technology:** Advanced Kalman filter and dynamic fusion algorithms deliver rock-solid, low-noise data you can trust. - • **Seamless Wireless Freedom:** Stay connected up to 10 meters via Bluetooth 2.0, perfect for clutter-free, real-time measurements. - • **Endurance Meets Efficiency:** 4-hour battery life with continuous operation even while charging—work uninterrupted and stress-free. ## Overview The WitMotion BWT901CL is a compact, high-precision Bluetooth-enabled 9-axis IMU sensor combining accelerometer, gyroscope, inclinometer, and magnetometer functions. With 0.05° angle accuracy, 200Hz output rate, and a 10-meter wireless range, it’s engineered for professional-grade motion and angle measurement. Featuring Kalman filtering for stable, low-noise data and a 4-hour battery life that supports charging during use, it’s ideal for advanced Arduino projects and industrial applications requiring reliable, real-time spatial awareness. ## Description Product Description Technical Specifications BWT901CL’s scientific name is the AHRS IMU sensor. A sensor measures 3-axis angle, angular velocity, acceleration, magnetic field. Its strength lies in the algorithm which can calculate the three-axis angle accurately. The robust housing and the small outline makes it perfectly suitable for industrial retrofit application such as motion capturing, engineering machine monitoring, etc. Persued for best data accuracy and stability: WTMOTION patented zero-bias automatic detection calibration algorithm and R&D dynamic fusion algorithm outperforms traditional accelerometer sensor. Current: <40mA Working Temperature: -40℃ ~ +85℃ Battery life: about 4 hours Data output frequency：0.2-200Hz Interface: Type-C, Bluetooth 2.0 Baud Rate: 115200 (default, can not be changed) Voltage: 3.3-5V, built-in rechargeable battery (260mAh capacity, 3.7V) Output Content: 3-axis Acceleration+Angle+Angular Velocity+Magnetic Field+Quaternion Range: Acceleration (±16g), Gyroscope (±2000°/s), Magnet Field (±4900µT), Angle (X, Z-axis: ±180°, Y ±90°) Resolution: Acceleration (0.005g), Gyroscope (0.61°/s), Magnet Field (16 bits) Angle Accuracy(after calibrated): X, Y-axis: 0.05° (Static) , X, Y-axis: 0.1° (Dynamic) Note: Z-axis angle will be affected by magnetic field. It is required to calibrate and keep the sensor at least 20cm away from the stuff like metal that may create magnetic field interference. Applications VR, AR applications such as virtual reality headset Motion capture & analysis, physical training & rehabilitation Smart Wearable devices & Sports Science Game Development like a wireless game controller Leveling Platform, Aerial Work Platforms, Robotic Systems Factory automation, various Machinery equipment, Consumer Electronics Renewable Energy like solar tracking system, wind turbine health monitoring Tutorial Manual with detailed instructions Datasheet with complete communication protocol for developing Free software for Windows PC (Minimu.exe) Two APP for Android phone (single-connection & multi-connection) Instruction demo video (search WITMOTION on Youtube) CH340 & CP2102 serial Driver Packing List 1x BWT901CL Bluetooth 2.0 inclinometer 1* Type-C charging cable (25cm) 1x Instruction card printed with QR code of document center Hardware Analysis (In-built BWT901) In-built HC-06 Bluetooth chip: coverage range within 10 meters (without obstacles like walls) Built-in Cortex-M0 core processor which can operate reaching 48MHZ, faster speed in the data processing Embedded highly-integrated MEMS accelerometer and gyroscope sensor, more stable and reliable in attitude measurement Plastic Casing Net Weight: 20g Size: 51.3mm x36mm X15mm/ 2.02" x 1.41" x 0.59" Two Wings design at the edge, better for installation User Friendly: LED lights Indicator, standby (blue flashes), pairing( blue light lits on), Charging( red light), fully charged( red disappear WITMOTION Alrogithm Advantages WITMOTION products are derived from the aerospace Satellite Attitude Determination Algorithm. Built-in core algorithm R&D Dynamic Fusion Algorithm Kalman filtering (program filter) Digital filtering State estimation algorithm No need to study the complicated protocol of MPU6050/ 9250 to get the attitude angle. Multiple-Connection BWT901CL supports multiple-connection with 1 Windows computer at the same time. There is a software for multi-connection inside the tutorial. Notice 1. The multiple-connection is required to buy the tool, USB-HID adapter from Witmotion store. (search ASIN: B07PXQJ4PW ) 2. Each BWT901CL can only pair with 1 USB-HID adapter.(note: the USB-HID need install CH340 drive) Genuinely Useful Software WITMOTION software offers several advantages configurations setting dashboard, 3D DEMO, data curve & chart display in real-time data record and playback, raw data reviewing, and more Notice: There is no software for the Linux, Python, or Mac system at present. Witmotion software is provided, compatible with the Windows system only, including Win 10, 8, 7, XP. 3D DEMO More intuitive to view the sensor's motion state. There are 4 types of simulation, car, head, plane, cube. The source code of 3D can be provided if customers have needs. Three methods for connection sensor with Windows PC Bluetooth wireless connection: through USB-HID adapter. (driver-free, no need pairing), Recommended tool: B07PXQJ4PW Wiring Connection: universal Type-C data cable (need to install CH340 driver) Wireless Bluetooth connection via PC and sensor(need pairing) Rock-solid data measurement in real-time The motion changing of the sensor will show on the data curve in real-time. Much easier and convenient for data collection and application. The data can be recorded by simply click the "record" button. Able to record and export the data to TXT format, offering you a clear data-changing track Config Menu Compared with traditional acceleration sensors, by simply changing its setting on software, various kinds of the configuration of the WitMotion sensor can be easily done. Configuring the device enables the customer to address a broad variety of use cases by applying the sensor data filtered by WITMOTION algorithms. Acceleration & Magnetic field calibration (recommended to proceed when starting to use) Output rate, bandwidth setting( sensitivity adjustable ), measurement range selectable Algorithm swift freely: easily change to 6-axis algorithm if there is strong magnetic field interference Placement Direction, and more Android App (Single-connection) BWT901CL supports Bluetooth connection with Android smartphones. Easy connection, simply chooses the module (9-axis Series), pair with the device, and start using. Search WitMotion on Google Play Store and download it. Configurations Compared with other sensors, by simply click the button on APP, various kinds of the configuration of the WitMotion sensor can be easily done. Acceleration calibration Magnetic field calibration Output rate setting Data Curve The standard Android APP's new features would be its data graph display. INSTALLATION: Download and unzip the tutorial. Quickly and easily set up your Sensors using the step-by-step guide on the manual or video. Powerful data storage and export function All data can be recorded by simply click the "record" button. Able to record and export the data to TXT format, offering you a clear data-changing track and you can manipulate it whatever you want! For data analysis please refer to the Chapter Data Format of the datasheet. There will be a complete communication protocol provided on the datasheet. About WITMOTION Established in 2014, WitMotion Team aims to become a global leader in attitude sensor, AHRS IMU. Foud out more here in our Witmotion Brand Store . The company is dedicated to make attitude measurement and tilt angle sensing solutions more accessible and easier for engineers around the world. Widely used every day by customers in over 50 countries for energy and electric power, tower control, Monitoring, engineering machinery, medical, academic, integrated system, more developing projects. WITMOTION' s R&D Dept. 20+professional engineer industry's top R&D team, and has a long-term collaboration with the Beihang University PhD team. WitMotion R&D protocol and Dynamic Fusion Algorithm Research and Development Facilities Ttriaxial nonmagnetic turntable: All finished items will be calibrated through the turntable, ensuring the X Y Z angle's accuracy. High& low temperature test chamber, making sure that the sensor can actually work well under -40℃ ~ +85℃ environment Vector Network Analyzers(VNA): Bluetooth antenna impedance matching 6 degrees of freedom vibration test bench: sensor's high performance and stability secured under vibration and dynamic environment Premium Components & QC System: All components are selected under a strict quality control system from the procurement, manufacturing process to assembly, inspection. Review: Good device good quality - Takes some time to calibrate but does the job. Support through Skype is excellent. Review: great accelerometer, but loads of other stuf thrown in too - not for the faint-hearted. You will need to do some reading to set it up, but a very good product at a good price point. Bought to monitor the vibrations happening in the steel-framed building my daughter lives in and surprised to see the flux measurement moving as well. ## Features - 【 High Performance 】Rock-solid data output: 3-axis XYZ (Pitch Roll Yaw) Acceleration+ Gyro+ Angle+ Magnetic field, measurement range and output rate ( 0.2-200Hz) selectable - 【 Robust Design 】4-hour battery life, long term measurement while recharging,10-meter Bluetooth measurement range (no obstacles like walls), Support multi-connection via WITMOTION PC software simultaneously (USB-HID adapter required) - 【 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 - 【 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 BWT901CL Bluetooth 2.0 inclinometer + 1 x charging cable + 1 x welcome guide. (USB-HID adapter not included) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MYRVC1H | | Best Sellers Rank | 85,385 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 51 in Acceleration Sensors | | Brand | WITMOTION | | Country Of Origin | China | | Current Rating | 40 Milliamps | | Current rating | 40 Milliamps | | Customer Reviews | 3.8 out of 5 stars 119 Reviews | | Item Weight | 0.97 Grams | | Item weight | 0.97 Grams | | Manufacturer | WitMotion | | Manufacturer Part Number | BWT901CL | | Material | Polycarbonate | | Maximum Supply Voltage | 5 Volts (DC) | | Maximum supply voltage | 5 Volts (DC) | | Measurement Accuracy | 0.05 Degree | | Measuring Range | 0.2-200 Hz | | Model Number | BWT901CL | | Mounting Type | Surface Mount | | Output Type | digital | | Sensing Distance | 10 Metres | | Specific Uses For Product | construction levels, platform leveling, industrial environments | | Style | Modern | | Style Name | Modern | | UPC | 713752277490 | | Upper Temperature Rating | 50 Degrees Celsius | ## Product Details - **Brand:** WITMOTION - **Material:** Polycarbonate - **Item weight:** 0.97 Grams - **Style:** Rugged - **Maximum supply voltage:** 5 Volts (DC) ## Images ![BWT901CL Bluetooth 2.0 9 Axis Inclinometer - Image 1](https://m.media-amazon.com/images/I/51-E3ZK1nXL.jpg) ![BWT901CL Bluetooth 2.0 9 Axis Inclinometer - Image 2](https://m.media-amazon.com/images/I/71gJ0mLjLZL.jpg) ![BWT901CL Bluetooth 2.0 9 Axis Inclinometer - Image 3](https://m.media-amazon.com/images/I/61Vd3GHJIdL.jpg) ![BWT901CL Bluetooth 2.0 9 Axis Inclinometer - Image 4](https://m.media-amazon.com/images/I/7120TCPLkIL.jpg) ![BWT901CL Bluetooth 2.0 9 Axis Inclinometer - Image 5](https://m.media-amazon.com/images/I/51lGUfri9pL.jpg) ## Questions & Answers **Q: is the acceleration range selectable** A: Hi Yes,it is selectable,it is 2g 4g 8g 16g.it can be set. **Q: Is the accelerometer easy to mount for experiments on ballscrew nuts?** A: Hi,Sir. You can make the test by yourself. Sincerely. **Q: Hi just bought one for simple headtracking and it came with no info at all - ie is there a battery in it in uk? Is there a switch - any info online?** A: 1.Yes, it has been built-in the battery for whole Europe-placemarket. 2.Yes, it has the switch on beside. 3.Yes. Help If you need User manual, PC software, APP(Android), sample code and AD package, Please enter our official service website:https://wiki.wit-motion.com/english/doku.php?id=bluetooth_inclinometer Detailed videos, please search “witmotion”on YouTube And you can download anything you need by yourself. Contact Us Website: www.wit-motion.com/english.php Skype: (+86)13005457470 javin@wit-motion。COM WhatsApp: (+86)13005457470 King regards Javin From Witmotion **Q: What app do I download on the Apple store?** A: Hello Sir. Nice to hear from you. Here is Javin who service you as your consults. I am sorry that the BWT901CL does not support connection via IOS App. And you can download the Android App via our link as below: Help If you need User manual, PC software, APP(Android), Sample Code,Drive and AD package , Please enter our official service website: https://wiki.wit-motion.com/english/doku.php?id=bluetooth_inclinometer Detailed videos, please search “witmotion”on YouTube Please click the relevant type :BWT901CL: which respond to yours,you can find the User Manual & PC software & Android APP & Sample Code & AD Package & Drive by yourself. Note: Please make sure that the config on the PC software as below: 1.Serial port 2.Baud rate: 115200 3.Type : Normal About the video reference with the usage of BWT901CL,you can have a view about the link as below: https://www.youtube.com/channel/UCxBLgvYQNk-sGVDp42ch-Ug And please make the calibration ( acceleration and magnetic field) as the video firstly before the usage of product. 3:About consult or issue: You can contact me freely if you have any other consult/question/custom design/bulk order. You can add my Skype and WhatsApp maybe it will be convenient for our conversation. And I will reply to you as quickly as possible. I am looking forward to serving you again in near future. Note:you can contact with me by email just replace" ." with" 。" for the convenience. 4.Feedback: Your positive comment means the world to us. Your support is hugely appreciated! Sincerely. Contact Us Website: www.wit-motion.com/english.php Skype & WhatsApp & WeChat: (+86)13005457470 javin@wit-motion。COM King regards Javin From Witmotion ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good device good quality *by J***F on 28 September 2019* Takes some time to calibrate but does the job. Support through Skype is excellent. ### ⭐⭐⭐⭐ great accelerometer, but loads of other stuf thrown in too *by B***E on 30 September 2022* not for the faint-hearted. You will need to do some reading to set it up, but a very good product at a good price point. Bought to monitor the vibrations happening in the steel-framed building my daughter lives in and surprised to see the flux measurement moving as well. ### ⭐⭐⭐⭐⭐ Very good product *by J***A on 21 March 2019* VEry good product, amazing support. I recommend it... ## Frequently Bought Together - [Bluetooth Accelerometer+Inclinometer] BWT901CL MPU9250 High-Precision 9-axis Gyroscope+Angle(XY 0.05° Accuracy)+Magnetometer with Kalman Filter, 200Hz High-Stability 3-axis IMU Sensor for Arduino - TUOFENG 18AWG Electrical Wire, Hook up Wire Kit 0.82mm² Flexible Silicone Wires (6 Different Colored 4 Meter spools) 600V Stranded Wires for Automotive Wiring - Fermerry 20 AWG Electrical Wire 0.5mm² Flexible Silicone Tinned Copper Wire Hook up Kit Stranded Wire Spool 10ft 3 Meter Each 6 Colors Gauge --- ## 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/49311716-bwt901cl-bluetooth-2-0-9-axis-inclinometer](https://www.desertcart.co.uk/products/49311716-bwt901cl-bluetooth-2-0-9-axis-inclinometer) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-25*