The BMP280 barometric pressure sensor is designed for mobile applications. The sensor module is available in a package. small size and low power consumption allow implementation in devices such as battery-powered mobile phones, GPS modules or watches.The BMP280's proven piezoresistive pressure sensor technology offers high accuracy, linearity, long-term stability and high EMC robustness. Many device operating flexibility to optimize device power consumption, resolution and filter performance. A test example uses the default for the in order to keep the design as simple as possible.BMP280 module, atmospheric pressure sensor moduleModule model: -BMP280-3.3Chip used: BMP280Power supply: 3.3vCommunication : standard IIC/SPI communication protocolAir pressure range: 300-1100hPaUsing immersion gold PCB, machine welding process to qualityPin spacing: 2.54mmModule size: 11.5mm Z 15mmTypical application:GPS precise navigation (dead reckoning, upper and lower bridge detection, etc.) indoor and outdoor navigationMonitoring weather forecast for , sports and health careVertical Speed Indication (Rise/Sink Speed) Fan Power ControlColour:PurpleMaterial:PCBSize: 11.5mm x 15mmPackage Contents:5 x Barometric Pressure Sensor Module5 x pinOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.