Description 12V 24V LCD digital car tachometer motorcycle truck tachometer for diesel motorcycle car instrument tacometro Specification: * Material: ABS plastic + aluminum* Display: LCD color screen* Working voltage: DC 9 -36V* Meter type: RPM meter* Measuring range: 50 to 9999RPM* Frequency: 20-20khz* Operating temperature: 0 to 50C* Size: about 45x100x75mm Features: 1. Reading 50~9999RPM. 2. Used to measure the RPM of a car engine. 3. LCD color screen with sun visor, high definition, clear display. 4. An accurate meter that takes the signal from the alternators W terminal. 5. High sensitivity, easy to operate, including user manual. 6 Default cylinder settings: 2, 3, 4, 5, 6, 87. Universal, fits all makes and models. Application: Suitable for all cars, trailers, ships, excavators, engineering vehicles, forklifts, etc. Signal input: Get signal from alternator w terminal; connect speed sensor. Package contains (pictured): 1 x box 1 x user manual 1 x tachometer Note: Please make sure you can install it, if you need help, you can contact your local car repair shop ,Thanks!