The Hall Effect Sensor Module (RPM & Speed Sensor) is a digital magnetic field detection sensor used to measure rotational speed (RPM), position, and motion. Ideal for Arduino, Raspberry Pi, and robotics projects, this sensor detects magnetic changes caused by rotating metal or magnetic objects, converting them into electrical signals for precise speed and position measurement.
Tachometer RPM Speed Measuring Optocoupler Module provides non-contact rotational speed detection using an infrared transmitter/receiver pair, offering high accuracy for Arduino, Raspberry Pi, and industrial automation projects.