GY-BMP280-3.3 High Precision Atmospheric Pressure Sensor

• An environmental sensor with temperature.
  
• This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI!
  
• This precision sensor from Bosch is the best low-cost, precision sensing solution.
  
• Pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy.

Specifications:

• Working voltage: 1. 7~3.6V DC
  
• Temperature measurement range: 0° C~ 65°C
  
• Temperature measurement error: soil 0.5°C MAX ± 1°C; resolution 0.1°C
  
• Relative humidity measurement range: 0%~ 100%
  
• Humidity response time: more than 1s
  
• Relative humidity measurement error: soil 2%; humidity hysteresis: soil 1%; separation rate 0.8%
  
• Air pressure measurement range: 300^ 1100hPa (hectopascal)
  
• Air pressure measurement error: ±1hPa resolution 0.18Pa
  
• Digital interface type: IIC (slave mode 3.4MHz) or SPI (3-wire or 4-wire slave mode 1 OMHz)
  
• Size: 15. 4mm (length) *11.6mm (width) *2.4mm (height)
  
• With M3 fixing screw holes for easy installation and fixing.