General Description The 52mm (2 inch) universal tachometer is designed to meet your measurement needs with a range from 0 to 10,000 RPM. It uses a stepper motor for improved sensitivity, with clearly displayed numbers and pointers, making it easy to read even in the dark. Technical Specifications Item Type: Tachometer Material: Plastic Application: Suitable for 4, 6, and 8 cylinder speedometers Diameter: 52mm (2 inches) Indication Range: 0-10,000 RPM Housing Color: Silver Voltage: 12 V Wiring Connection: Black (Negative), Red (Positive), Green (Signal Line) Compatibility and Accessories Compatible with most cars and motorcycles Included: 1 instrument, 1 power cable, 1 user manual Installation Installation is simple, but it is recommended to consult the user manual in English. For optimal installation, professional installation is recommended. Usage: The tachometer is designed to provide accurate engine RPM measurements, allowing for better monitoring of your vehicle's performance. Other Information: Made of durable plastic, this tachometer is designed to withstand wear and tear and protect your vehicle from potential damage.