Yesterday I received a small chip, the BME280 from BOSCH SensorTec   Germany. The BME280 is an integrated environmental sensor developed specifically for mobile applications and low power consumption. The unit combines individual high linearity, high accuracy sensors for pressure, humidity and temperature in an 8-pin metal-lid 2.5 x 2.5 x 0.93 mm3 LGA package, designed for low current consumption (3.6 μA @1Hz), long term stability and high EMC robustness.