Linear Magnetic Hall sensor module [Hall effect sensor module]

Dimensions 3.5 × 1.5 × 3 cm
Operating Voltage

2.7V to 6.5V


1.0 mV/G min., 1.4 mV/G typ., 1.75 mV/G max.

The KY-024 Linear magnetic Hall sensor reacts in the presence of a magnetic field. It has a potentiometer to adjust the sensitivity of the sensor and it provides both analog and digital outputs.

The digital output acts as a switch that will turn on/off when a magnet is near, similar to the KY-003. On the other hand, the analog output can measure the polarity and relative strength of the magnetic field.

This module consists of a 49E Linear Hall-Effect Sensor, an LM393 Dual Differential Comparator, a potentiomenter, 2 LEDs, 6 resistors and 4 male header pins.

Compatible with popular electronics platforms like Arduino, Raspberry Pi, Esp32, Teensy and others.



Connect board power line (+) and ground (G) to 5V and GND on the Arduino respectively.

Connect the digital signal pin (D0) to pin 3 and the analog signal pin (A0) to pin A0 on the Arduino.

A0 Pin A0
+ 5V
D0 Pin 3