ITEM NAME:Universal Motorcycle Scooter 13000RPM Analog Tachometer Gauge Night Light B5H1 Universal Motorcycle Scooter 13000RPM Analog Tachometer Gauge Night Light B5H1 Black line lock positive electrode Green line lock negative electrode Yellow line contacts signal Some models need to attach high voltage signal line For All Motorcycle Easy to install & long lasting 0-13000RPM Measurement Material:Stainless Steel Diameter:approx.65mm Height:approx.55mm Tachometer unit:RPM Internal Night light, red and blue cables for light, DC 12V Case Material:Stainless steel Color:Silver Includes: 1 x Motorcycle Tachometer Note:Light shooting and differnent displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3 cm.