Note before buying:For LCD Display, make sure C1=2 before using this product.For LED Display, you need to buy the same product as beforemon problem:1. The installation spacing is not accurate.2. The line sequence of the pedal auxiliary sensor does not match the line sequence of the controller.3. Feel free to change the display parameters.solution:1. Installation: The installation distance between the magnet and the sensor is 3-5mm.2. Confirm the wire sequence of the controller and the wire sequence of the power assist.3. Parameters: BZ-4 (8) magnetic point, C1=2Type :BZ-4(8) 8 magnent PASInstallation :LeftVoltage: 36V, 48VColor :BlackWeight: 50GMagnet : 8 MagnetsCable Length :80cm including the connectorPlug :3 Pin Connector