This breakout board is for the Bosch BMP180 high-precision digital pressure sensor.

The BMP180 measures a pressure range of 300 - 1100hPa.
The ultra-low power, low voltage electronics of the BMP180 is optimized for use in mobile phones, PDAs, GPS navigation devices and outdoor equipment.
The I2C interface allows for easy system integration with a microcontroller. The BMP180 is based on piezo-resistive technology for EMC robustness, high accuracy and linearity as  well as long term stability.
Supply Voltage: 1.8V - 3.6V
Pressure Range: 300 - 1100hPa
Interface: IIC