Precise non-contact tachometer for rotation speeds from 2.5 to 99999 RPM with high resolution and accuracy. Resolution is 0.1 RPM for 2.5–999.9 RPM and 1 RPM for 1000–99999 RPM, with ±0.02% accuracy for industrial and automotive applications. Large LCD with white backlight and data recording. Stores up to 60 measurement groups and displays last, minimum, and maximum readings for easy trend analysis and comparison. Versatile industrial applications. Designed to measure speeds of engines, wheels, lathes, fans, paper-making machines, fibers, washing machines, and equipment used in plastic and automotive manufacturing. A reliable tool for maintenance technicians, engineers, and quality control professionals. Convenient operation and measurement distance. Capture accurate RPM readings from 50–500 mm (2–20 inches) away with a rapid 0.5-second response time at speeds above 120 RPM. Supports automatic and manual measurement modes with interval settings for customized testing in various environments. Use scenarios: - Automotive and engine diagnostics: verify idle and running speeds on engines and wheels to confirm proper performance. - Machinery maintenance: monitor spindle or fan speeds on lathes, motors, or cooling systems to detect abnormal RPM changes. - Manufacturing process control: track drum or process equipment speeds (washing machines, paper machines) to ensure consistent operation and quality.