Usage Tips:Features： 1、Applicable Model: Application for JN controller and electric bicycle motor kit, compatible with 36V and 48V voltage. 2、Fine Workmanship: Plastic shell has good toughness and waterproof performance, which provides better protection for the internal circuit and makes it more durable. 3、LCD Display Data: Make it easier for you to view the data on the panel. It truly reflects the battery power and records the power consumption in real time to ensure the riding mileage. 4、Safe Riding: When riding bicycle, the GD01 LCD meter will display many useful data on your bicycle, such as remaining power, speed, mileage and other parameters. 5、Wide Range of Uses: Suitable for 22.2mm/0.9in diameter handlebars, electric bicycles, scooters and other accessories. 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