Hall Effect Sensor Module / RPM Sensor / Speed Sensor

Hall effect sensor is very popular in magnetic field detection. This sensor module comes with the basic circuitry to help you get started. Power it with 5VDC and you will get a hall effect sensor, there are two output, digital and analog. Compatible with most of microcontroller such as Arduino/Genuino UNO, Mega, CT-UNO, CT-ARM, Raspberry Pi, and more.   Features: Input Power: 5VDC Based on Allegro 3144 Hall Effect Sensor. Two LED indicator, one for power and another for digital output. Simple interface: VCC, GND, DO, AO Dimension: 2.7cm x 1.4cm