DAOKI 3V-5V GY-273 QMC5883L Triple Axis Compass Magnetometer Sensor Module Three Axis Magnetic Field Module Materiale with Male and Female Dupont Cables for Arduino,Pack of 3: Amazon.com: Industrial & Scientific
AK8975 Three-axis Electronic Compass High Precison Compass Module for arduino: Amazon.com: Industrial & Scientific
High Accurancy IIC I2C GY-273 HMC5883L 3-Axis Compass Magnetometer Sensor Board Module for Arduino 3-5V Power: Amazon.com: Industrial & Scientific
HMC5883 HMC5883L GY-271 3V-5V Power Supply Triple Axis Compass Magnetometer Sensor Module for Arduino: Amazon.com: Industrial & Scientific