ITEM NAME:BMP280Atmospheric Pressure Sensor Breakout Temperature Humidity N3D K9E4 Description&Preview.BMP280, the precision sensor from Bosch, is soldered onto PCB. It uses both I2C and SPI (supports 3-, 4-wire SPI) interface. Humidity: 0-100%. Humidity: 0.008%. Humidity: +-3%. Temperature: -40 to +85Â °C.