Touchless Tach Gauge: This device utilizes LED technology to create a stroboscopic effect for accurately measuring rotational speed or frequency up to 99999 RPM with 0.001% precision. Adjustable Strobe Frequency: The strobe frequency can be easily adjusted using the 360 degrees dial, allowing the moving object to appear stationary or slow-moving for easier observation. High-Performance LED: Featuring 1500 lux LEDs and a matrix structure with 16 lamp beads, the strobe light provides a longer illumination range, brighter flashes, and improved accuracy in positioning. Real-time Observation: This LED stroboscope measures the speed of fast-rotating objects without the need for reflective tape, enabling real-time visual observation of rotating motion. Versatile Application: The digital handheld stroboscope is designed for measuring rotational speed or vibration frequency of rotating equipment, helping to identify defects and locations without direct contact or halting operation.