Product introduction: Intelligent liquid crystal Display, Simple and light, left switch display High brightness 1.8-inch multi-color nixie tube screen Excellent outdoor design, IP65 waterproof capacity Serial communication interface to facilitate maintenance service Suitable for electric power assist bicycle in accordance with the standard of EN15194 Communication Protocol : Uart V5.8A Communication Protocol Cable Length : 64cm Color: Black Material: plastic Package Contents: 1 x DZ41 Ebike Display