Waterproof Design: This electric bike LCD control panel is waterproof, making it convenient and practical to use in wet conditions. Stable and Sturdy: The electric bike LCD meter features a simple design with durable wires and interfaces, ensuring a low failure rate for long-term use. Easy to Install: The electric bike cycling computer has a mounting aperture of 31.8mm, with 22.2mm optional, making it a perfect accessory for electric bikes, scooters, and similar vehicles. Good Replacement: This display panel is an ideal replacement for old or damaged original parts on electric bikes, scooters, and other compatible vehicles. Quality Material: This electric bike M5 LCD panel screen is made of high-grade ABS material, providing durability and resistance to wear. Item Type: Electric Bike LCD Meter Note: This product uses No. 2 communication protocol and must be used with a compatible No. 2 communication protocol controller; otherwise, it will not function properly. FAQ: Q1: What is the communication protocol? How many pins does the interface have? A: This product uses No. 2 communication protocol. It is a 5-pin product, and the connector must match the pin definition to operate correctly. Q2: How do you resolve the E10 fault code? A: 1. Check the connection between the instrument and the controller for poor contact, incorrect plugging, or wiring errors. 2. Check the turnbuckle or booster for short circuits and verify wiring accuracy. 3. Ensure no accessories exceeding 5W power are connected through the instruments power output; external devices powered via the instrument should not exceed 5W total. Q3: How do you restore factory settings? A: Access the instrument parameter setting interface, navigate to P16 parameter, press and hold the plus key for 10 seconds to restore factory settings, or press and hold the minus key for 10 seconds to clear the total mileage. Color: As shown in picture Material: ABS Package Contents: 1 x Electric Bike LCD Meter Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3 cm.