Characteristics: 1. 2 in 1 design, it is a combination of digital tachometer and voltage display for motorcycle. 2. The housing is 6 chrome plated, durable and light. 3. The case is made of high-quality metal material, which has better waterproof effect. 4. It features excellent workmanship, stable quality and long service life. 5. It is universal for all types of motorcycles, easy to install and practical. 6. Essential equipment that will help you know the condition of your tachometer . 2 IN 1 MOTORCYCLE LED TACHOMETER VOLTMETER Specification: Item Type: Tachometer Silver color Housing material: high-quality metal Voltage: 12V DC LED color: red blue Voltmeter: For measuring the voltage of your motorcycle Wiring instructions: The red wire is connected to the positive pole and the black wire is connected to the negative pole. The emission detection wire is the green wire (engine ignition induction line or ignition line from ignition coil to positive line) Installation: universal Package List: 1 * Tachometer . 2 IN 1 MOTORCYCLE LED TACHOMETER VOLTMETER