Usage Tips:Waterproof Design: This Electric bike LCD control panel is waterproof, so it is convenient and practical to use in without fear of wet. Stable and Sturdy: Electric bike LCD meter is designed to be simple and the wires and interfaces are sturdy to low failure rate for long time use. Easy to Install: Electric bike cycling computer's mounting aperture 31.8mm, 22.2mm optional, perfect accessory for electric bikes, scooters, etc. Good Replacement: This display panel is the perfect accessory for replacing old or damaged -parts for electric bikes, scooters, etc. Quality Material: This Electric bike M5 LCD panel screen is made of high grade ABS material, sturdy and wear , . Item Type:Electric Bike LCD Meter Note:Product is No. 2 communication protocol, need to be used with No. 2 communication protocol controller, otherwise it is not compatible FAQ: Q1: What is the communication protocol? How many pins is the interface? A: The communication protocol is No.2 protocol. This is a 5pin product, and the connector needs to match the pin definition of the product to work. Q2: How to deal with the error E10 fault code? A: 1. Check the instrument and the controller docking port, there is no poor contact, plug and play, there is no wiring error; 2. Check the turnbuckle or booster there is no shortcircuit, wiring there is no error; 3. Is not connected to the excess power of the lamps or horns and other accessories, through the instrument door control power supply of the external equipment should not be more than the total power of 5W. Q3: How to restore factory Settings? A: Enter the instrument parameter setting interface, switch to P16 parameter, long the plus key for 10 seconds to restore factory Settings, long the minus key for 10 seconds to clear the total mileage. Colour:As Shown Material:ABS Package Contents: 1 x Electric Bike LCD Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.