Features: Premium Electric Bike Speedometer with 48V/60V/72V compatibility delivers precise voltage monitoring and real time speed tracking for optimized scooters performances, featuring double lins /Phase signal modes for accurate dashboard display. multiple functional LED instrument panel shows gear positions (1 to 3), fault alerts (motor/controllers /control ), cumulative mileage, and 5 bar battery indicator with automatic charging warnings for comprehensive ride diagnostics. Ideal for electric scooters enthusiasts upgrading their Xiaoguiwang models or repair man seeking professional dashboard solution with lins communication compatibility and phase speed conversion option. Designed for urban commuters and long distance riders, this waterproof PC+ABS display integrates turn signal indicators (orange/light blue wiring) and headlight control (brown wire) for enhanced road visibility and safety. Universal installation kit supports most lead acid battery systems, with color coded wiring harnesses and voltage conversion lines (48V/72V default) ensuring error free setups and stable speed readouts up to 99km/h. Specifications: Material: PC+ABS Diameter: about 120mm/4.72inch Installation: The red cable is the positive poles, the black cable (or green cable) is the negative poles, and the purple line is the phase speed Package Includes: 1xLED Speedometer note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.