ITEM NAME:.BME280 Atmospheric Pressure Sensor Humidity Temperature Sensor Breakout Arduino.1 BMP280 Atmospheric Pressure Sensor Temperature Humidity Sensor Breakout. Humidity: 0-100%. Humidity: 0.008%. Humidity: +-3%. Not only the pressure and the temperature. Temperature: -40 to +85Â °C. Pressure: 300-1100 hPa.