The Strobe Tachometer RPM Meter is a handy utility app designed for iPhone users. It offers three different methods for measuring the speed of rotating objects: strobe, laser, and magnetic tachometer.

With the strobe tachometer, you can use the flicker frequency of light to detect the rotation speed of objects such as fans. The app allows you to easily control the flicker frequency with precision, ranging fromHz to 1000 HzRPM to 60,000 RPM) for a connected flashlight, and up to 100 HzRPM) for the iPhone flashlight. If the speed exceeds the upper limit, you can still determine the speed by making measurements with a lower flicker frequency and performing a simple calculation.

The app also features a laser tachometer, which has a measurement range from 0.3 Hz (18 RPM) to 1000 Hz (60,000 RPM), with a step size ofHzRPM). The update time for this mode is 1 second, and it requires a 5 mW laser power.

Lastly, the magnetic tachometer uses the iPhone's magnetometer to measure the magnetic field from a spinning magnet. It is best suited for measuring low rotation speeds starting from 6 RPM, but can also be used for medium rotation speeds up to 2700 RPM. The measurement range for this mode is from 0.1 Hz (6 RPM) to 45 HzRPM), with a step size of 0.2-2%. The update time for this mode is 2-5 seconds.

Overall, the Strobe Tachometer RPM Meter is a versatile tool for measuring rotation speeds using different methods, making it useful for various applications and industries.