Resolves about a metre of altitude change, which is enough to tell which floor of a building you are on. Common in weather stations and as a cheap altimeter for models.
Specifications
| Pressure range | 300-1100 hPa (+/-1 hPa) |
| Temperature | -40 to +85 C (+/-1 C) |
| Interface | I2C (0x76/0x77) or SPI |
| Operating voltage | 1.71-3.6 V |
| Current draw | 2.7 uA @ 1 Hz |