BMP581 Barometric Pressure Sensor Bosch BMP581 Barometric Pressure Sensor features a wide 300hPa to 1250hPa measurement range and absolute accuracy of ±30Pa. The BMP581 is optimized for high-performance applications like fitness measurements with ±6Pa. This feature is equivalent to a ±50cm difference in altitude and an offset temperature coefficient (TCO) of 0.5Pa/K. The device's low power consumption and integrated 512-byte FIFO buffer supports low power applications and prevents data loss in non-real-time systems.