The GY-273 3-Axis Compass Magnetometer Module is a compact and reliable sensor designed for precise magnetic field measurements and heading detection. Available with either the HMC5883L or QMC5883L chip, this module supports I2C communication and operates on a wide voltage range. With a high measuring range and excellent heading accuracy, it is ideal for navigation, robotics, and motion sensing applications.
Specifications of GY-273 3-Axis Compass Magnetometer Module

Chip Options: HMC5883L / QMC5883L

Operating Voltage: 3V ~ 5V DC

Communication: I2C Protocol

Measuring Range: ±1.3 ~ ±8 Gauss

Heading Accuracy: 1° ~ 2°

Max Data Rate: 160 Hz

Dimensions: 18.5×13.5×2.5mm

Datasheet of GY-273 3-Axis Compass Magnetometer Module

HMC5883L Datasheet

QMC5883L Datasheet