SW-M81 TFT Display
4.0-inch color TFT e-bike display with UART/CAN communication and Bluetooth 5.0

Overview
The SW-M81 is a compact 4.0-inch TFT color display designed for electric bicycles and light electric vehicles. It features a high-visibility vertical screen with ambient light sensor for automatic backlight control, a separate handlebar remote for blind operation, and Bluetooth 5.0 connectivity. The IP66-rated housing withstands harsh outdoor conditions.
- 4.0-inch TFT color screen
- UART (default) / CAN (optional) communication
- Bluetooth 5.0 built-in
- Ambient light sensor for auto brightness
- USB charging port
- IP66 protection rating
- CE / RoHS / EN13849 certified
Features & Dimensions
Standard Functions
- Assist level display and adjustment
- Real-time speed
- Single trip distance
- Total distance (ODO)
- Light on/off control
- Assist modes selection
- Power output indicator
- Error code display
- Settings menu
Optional Features
- Custom boot logo / animation
- Real-time cruise control
- Multi-language support
- Turning signal display
- Signal / dual drive support
- Dual battery compatibility
- Customized screen layout

Technical Specifications
| Model | SW-M81 |
| Screen Type | 4.0-inch TFT color display |
| Working Voltage | 12–60 V DC |
| Communication | UART (default) / CAN (optional), Bluetooth 5.0 |
| Protection Rating | IP66 |
| Certification | CE / RoHS / EN13849 |
| Dimensions (W × H × D) | 77.83 × 99.78 × 64.36 mm |
| Handlebar Compatibility | Ø22.2 / Ø25.4 / Ø31.8 mm |
| Light Sensor | Yes (automatic backlight) |
| USB Port | Yes (charging) |
| Remote Control | Separate handlebar keypad (included) |
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