The GY-63 MS5611-01BA03 High Precision Pressure Sensor Height Sensor Module with SPI and I2C bus interface. This barometric pressure sensor is optimized for altimeters and variometers with an altitude resolution of 10 cm. The sensor module includes a high linearity pressure sensor and an ultra low power; 24 bit ΔΣ ADC with internal factory calibrated coefficients. It provides a precise digital 24 Bit pressure and temperature value and different operation modes; that allow the user to optimize for conversion speed and current consumption.