Speedometer/Tach Calibrator

The Speedometer/Tach Calibrator by Classic Instruments (Model SN74Z) is an essential tool for automotive enthusiasts and mechanics looking to ensure their vehicle's speed and RPM readings are accurate after modifications. This compact device is designed to calibrate your speedometer and tachometer, making it indispensable for those who have upgraded their tires, transmission, or gear ratios.

Accurate readings are crucial for performance and safety. This calibrator features a user-friendly interface and is constructed with high-quality materials, ensuring durability and reliability. It connects to your vehicle's wiring, allowing for installation, though the ease of installation may vary depending on the vehicle model.

Ideal for car enthusiasts who frequently modify their vehicle's performance, the Speedometer/Tach Calibrator can enhance your driving experience and ensure your vehicle runs within safe parameters. While it is designed to work with a range of vehicles, it is recommended to check compatibility with your specific model before purchase.