The Extech 461825 Tachometer is a versatile instrument that combines the functionality of a tachometer and a stroboscope. This unique device allows for RPM (rotations per minute) measurement, stroboscopic speed analysis, and motion analysis, making it an essential tool for a wide range of applications.The Extech 461825 features a combination photo tachometer and stroboscope, providing you with multiple measurement capabilities in a single device. The tachometer function allows for accurate RPM measurement, while the stroboscope function enables you to analyze the speed and motion of rotating objects.One of the standout features of the Extech 461825 is its unique display, which reverses character direction depending on the measurement mode you are using. This intuitive design ensures that you can easily read and interpret the displayed data, regardless of the measurement mode selected.The tachometer's memory function stores the last, maximum, and minimum readings for easy recall. This allows you to review and analyze the data at a later time, ensuring accurate record-keeping and analysis.The strobe function of the Extech 461825 offers course and fine flash rate adjustments in three ranges. This provides you with flexibility and precision when analyzing the speed and motion of objects in different scenarios.With its user-friendly design, the Extech 461825 is easy to operate and provides accurate measurements. Its compact size and lightweight construction make it portable and convenient to use in various locations and environments.