Published by Dmitriy Kharutskiy on 2023-09-10
What is Strobe tachometer (RPM meter)?
The Strobe Tachometer app is designed to measure the speed of any rotating object by detecting the flicker frequency of light. The app offers three different modes of measurement, including a flashlight mode, laser mode, and magnetic mode. The app allows users to quickly assign the flicker frequency with an accuracy of 0.0001 Hz (0.01 RPM) and displays the frequency in either Hz or RPM. The app also offers a simple calculation method to determine the speed of objects that exceed the upper limit of measurement.
1. It can also be used for measuring medium rotation speeds (up to 2,700 RPM), but at such speeds there is a risk of spontaneous tearing away of the magnet and strong vibration due to center-of-gravity shift.
2. IF THE SPEED IS MORE THAN UPPER LIMIT, YOU MAY STILL DETERMINE THE SPEED BY FIRST MAKING MEASUREMENTS WITH A LOWER FLICKER FREQUENCY AND THEN MAKING A SIMPLE CALCULATION (AS EXPLAINED IN THE APPENDIX).
3. Changing the frequency of the flicker of light may help detect the rotation speed.
4. When the flicker frequency of light coincides with the speed of any object, such as a fan, the rotating fan may appear to be stationary.
5. • Up to 100 Hz (6000 RPM) for the iPhone flashlight (iOS 7 and 8).
6. • Up to 40 Hz (2500 RPM) for the iPhone flashlight (iOS 9+).
7. • Up to 1000 Hz (60 000 RPM) for a connected flashlight (see the video on YouTube: ).
8. The magnetic tachometer is best suited for measuring low rotation speeds (from 6 revolutions per minute).
9. • Measurement range from 0.3 Hz (18 RPM) to 1000 Hz (60 000 RPM).
10. This tachometer operates by measuring the magnetic field from a spinning magnet.
11. After a long period of usage, in case of overheating, the iPhone flashlight turns off automatically.
12. Liked Strobe tachometer (RPM meter)? here are 5 Utilities apps like Video tachometer; Brite Light - Emergency Strobe Flashlight; Music Strobe Flashlight; Night club strobe light-synced with your music;
GET Compatible PC App
| App | Download | Rating | Maker |
|---|---|---|---|
 Strobe tachometer (RPM meter) |
Get App ↲ | 68 4.34 |
Dmitriy Kharutskiy |
Or follow the guide below to use on PC:
Select Windows version:
Install Strobe tachometer (RPM meter) app on your Windows in 4 steps below:
Download a Compatible APK for PC
| Download | Developer | Rating | Current version |
|---|---|---|---|
| Get APK for PC → | Dmitriy Kharutskiy | 4.34 | 3.6.3 |
Get Strobe tachometer (RPM meter) on Apple macOS
| Download | Developer | Reviews | Rating |
|---|---|---|---|
| Get Free on Mac | Dmitriy Kharutskiy | 68 | 4.34 |
Download on Android: Download Android
- Three different modes of measurement: flashlight mode, laser mode, and magnetic mode
- Measurement range from 0.3 Hz (18 RPM) to 1000 Hz (60 000 RPM) for laser mode
- Measurement range from 0.1 Hz (6 RPM) to 45 Hz (2,700 RPM) for magnetic mode
- Up to 1000 Hz (60 000 RPM) for a connected flashlight (iOS 7 and 8)
- Up to 100 Hz (6000 RPM) for the iPhone flashlight (iOS 7 and 8)
- Up to 40 Hz (2500 RPM) for the iPhone flashlight (iOS 9+)
- Flicker frequency control buttons to quickly assign the flicker frequency with an accuracy of 0.0001 Hz (0.01 RPM)
- Display frequency in either Hz or RPM
- Simple calculation method to determine the speed of objects that exceed the upper limit of measurement
- Image appears sharper in lower external light
- Automatic turn off of iPhone flashlight in case of overheating
- Update time of 1 sec for laser mode and 2-5 sec for magnetic mode
- Step of 0.01-0.0001 Hz (1-0.01 RPM) for laser mode and step of 0.2-2% for magnetic mode
- 5 mW laser power required for laser mode.
- Useful for measuring rpm on mechanical and electro mechanical equipment
- Handy and easy to use
- Can control flashlight, camera, and other devices
- Tutorial videos are detailed and clear
- Does not work well as a tachometer
- Fails for a quarter second when the iPhone cannot supply enough current to the flashlight
- Ads pop up on the app
- There are other better apps available for this purpose.
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