SainSmart BMP180 Barometric Pressure, Temperature, Altitude Sensor- 5V ready BMP180 is a high precision, ultra-low power consumption pressure sensors, can be applied to mobile devices Its performance, the absolute accuracy of the minimum can reach 0.03hPa, and very low power consumption, only 3A BMP180 powerful 8-pin ceramic-lead chip carrier (LCC) ultra-thin package, through the I2C bus can be connected directly with a variety of microprocessor8-pin ceramic-lead chip carrier (LCC) ultra-thin package, through the I2C bus can be connected directly with a variety of microprocessor.