GEP-M1025-DQ is a unique combination of GPS module, compass and barometer. The barometer is used to measure altitude and is usually included in flight controllers. However, if your FC does not have a barometer but you still want to use automatic flight, this GPS module is just for you.
The GEP-M1025 uses a u-blox M10050 GPS chip and a large 25x25mm antenna. The module includes a QMC5883L magnetometer and a DPS310 barometer.