How to Use: Fix the LCD display part and buttons of the instrument on the handlebar of the electric vehicle, and adjust the angle of view properly. When the vehicle is powered off, connect the instrument connector to the corresponding connector of the controller. Turn on the power, the electric vehicle and the instrument enter the normal operating state, and the instrument installation is completed. When the meter is off, press and hold the M button for 3 seconds, and the meter will display and start to work. Turn on the controller power. In the power on state, press and hold the M button for 3 seconds, the power of the meter will be turned off, and the power of the controller will be turned off. If you do not ride for 10 minutes (the time can be set by the user) and do not operate the meter, the meter will automatically turn off the power. In the shutdown state, the power consumption of the instrument and controller is zero. Specification: Item Type: LCD GD01 Display Material: Plastic Color: As Pictures Shown Weight: Approx.88g/3.1oz Interface: 5 Pin Waterproof Interface Applicable Handlebar Installation: 22.2mm/0.9in Diameter Handlebar Voltage: 36V 48V (the Voltage on the Instrument is Set by Yourself) Size: Meter: Approx. 82x48mm/3.2x1.9in, Including Connector Cable Length: Approx. 20.5cm/8.1in Application: for JN Controller and Electric Bike Motor Kit Function Description: 1. Using Two Way Communication Protocol. 2. Real Time Speed Display. 3. Km/mile Display. 4. Smart Battery Display. 5. Headlight Control. 6. Three Level Adjustment of Backlight Brightness. 7. Five Gears Control. 8. Mileage Display. 9. Fault Code Display. 10. Assist the Implementation of the 6km/h Model. 11. Parameter Settings. Package List: 1 x LCD GD01 Display