I have been using the AH1815 Hall effect sensor with an Arduino and a breadboard circuit to determine RPM value of a magnetic tribune. The RPM value was detected by reading unit steps on an oscilloscope. The circuit has some problems while detecting.
Are there other instruments that can handle the task? I was also wondering about measuring data using breadboard circuits and taking data via Bluetooth adapter. The other sensors I was looking for were DRV5013-Q1 sensor and AD22151 sensor.