[COMPATIBILITY ] This small-sized ebike display DZ40 is only compatible with for elctric bike motor with UART 5.0~5.8 protocol. [INTELLIGENT DZ40 ABS & PC DISPLAY ] The 1.3 inch screen offers exceptional visibility, even in bright sunlight, allowing you to easily monitor your ride [EASY INSTALLATION ] The DZ40 can be installed on the left side of the horizontal tube with a handlebar size of 22.2mm, making installation a breeze [Comprehensive Data Display ] The DZ40 displays a of important data, including speed, headlight, battery indication, helping you stay informed and safe during your ride. Specification: Power supply: DC 24V/36V/48V Rated current: 18mA/36V Shutdown leakage current: Less than 1uA Display: white digital tube display Communication mode: UART (default) Operating temperature: -20 ~ 60 Storage temperature: -30 ~ 80 Waterproof grade: IP65 Note: Do not plug in or unplug this display when the power to the unit is on. Avoid collisions. Protect the display's membrane to provide water resistant performance. Do not attempt to reset parameters if the display is not working. Material: plastic colour: Black Package Contents: 1 x Bicycle LCD Display 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.