2026 F4[UART2]Turn On The NFC Screen Electric Bicycle Display Ebike Accessories 24V/36V/48V/60V Cycling Computer Bike Speedometer

:We strictly control product quality to ensure stable performance and safe use.Our store design and product styles have been copied by many peers.Please confirm our flagship store to ensure you get genuine quality goods and standard after-sales service. Thank you!Product Name: F4 Bicycle AccessoryDimensions:115.2mm x 58.2mm x 11mmFunctions: Battery indicator; headlight control; boost function; assist levels; speed display; trip/total mileage; running time; metric/imperial conversion; fault indicator; walking; PAS levels; speed; riding time; error warningCommunication Method: UART 2Compatible Handlebar Sizes: 22.2mm / 25.4mm / 28.6mm / 31.8mmCompatible Voltage: 24V / 36V / 48V / 60VType-C Charging: 5V / 500mAWarm reminder:1.The protocol of this product is UART2. If it does not match the protocol of the controller, it may result in abnormal use!2.By default, our product has no speed limit (100). If your controller has a speed limit, our display screen can only show the corresponding speed.Q: What kind of car is suitable?A: Sorry, due to the different internal parts of the vehicles, we cannot determine which model is suitable. We only apply the UART2 protocol controller.Q: I don't know the agreement. How can I check it?A: You can look for it from the appearance of the controller, the manual of the controller or the old display screen, and the seller of the controller or the old display screen.Q: Can the UART protocol be used?A: No, there are many protocols in UART, such as bafang, kds, etc. UART2 is just one of themQ: May I ask if the speed limit can be lifted?A: It depends on whether your car is limited by the controller or the display screen. If the controller limits the speed, there is no way to lift the speed limit. If the display screen limits the speed, the speed limit can be liftedQ: Can I try out this product? If it doesn't suit me, can I return it?A: No, no returns or exchanges for non-quality issues.Q: What voltage range does your display screen support?A: Our display supports 24V/36V/48V/60V.(The S810 only supports 36v.)Q: Can your display screen be connected to mobile applications via Bluetooth?A: Some models, such as H8 and M5C-2, support Bluetooth connection and are compatible with third-party cycling applications. Please refer to the product details or contact us for application compatibility.Q: Are there any restrictions on mobile phone models for the Bluetooth version of the APP?A: The APP does not discriminate by phone model. It can be used on both Apple and Android systemsQ: How to change the speed?A: You can enter the menu by long pressing the + and - keys, and then short press the power button to switch to P08. After entering P08, use the + key to set the desired speed. After adjusting, long press the + and - keys to save and exit the menu.Q: Is an immediate speed limit of 25 kilometers supported?A: The specially customized version can support a fast speed limit of 25 kilometers per hour, while the regular version does not.