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 more. Good Replacement: This display panel is an ideal replacement for old or damaged original parts on electric bikes and scooters. Quality Material: This electric bike M5 LCD panel screen is made of high-grade ABS material, sturdy and wear-resistant. Item Type: Electric Bike LCD Meter Note: The product uses No. 2 communication protocol and must be used with a No. 2 communication protocol controller; otherwise, it is not compatible. FAQ: Q1: What is the communication protocol? How many pins does the interface have? A: The communication protocol is No. 2. This is a 5-pin product, and the connector must match the pin definition of the product to function properly. Q2: How do you handle the E10 fault code? A: 1. Check the instrument and controller docking port for poor contact, ensure proper plug connection, and verify there is no wiring error. 2. Check the turnbuckle or booster for short circuits and confirm wiring accuracy. 3. Do not connect accessories that exceed the power limit; external devices controlled through the instrument should not exceed 5W total power. Q3: How do you restore factory settings? A: Enter 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 Material: ABS Package Contents: 1 x Electric Bike LCD Meter Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the picture and the actual product. Measurement error allowance is +/- 1-3 cm.