Features:
Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)
Supply voltage VDD main supply voltage range: 1.71 V to 3.6 V
VDDIO interface voltage range: 1.2 V to 3.6 V
Current consumption:
1.8 uA @ 1 Hz humidity and temperature
2.8 uA @ 1 Hz pressure and temperature
3.6 uA @ 1 Hz humidity, pressure and temperature
0.1 uA in sleep mode.

The board has selectable I2C address jumper (solder link GS2), I2C pull-up resistors, 7 pin header 2.54mm/ 0.1 inch, and two mounting holes 3.5mm.
Default setting of the board;
single power rail Vdd=Vdd_IO (solder link GS1),
pull-ups resistors (R2, R3) 10k,
protocol selector resistor 0ohm (R1),
decoupling capacitors 0.1uF on both power supply pins Vdd & Vdd_IO.
If you connect board to both power rails VDD_IO 1.8V and VDD 3.3V be sure to remove the power rail jumper GS1.

Operating range -40~+85 ℃
0-100 % rel. humidity; 300-1100 hPa Humidity sensor and pressure sensor can be independently enabled/disabled.

This precision sensor is a low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy.

Applications:Humidity sensors and air pressure sensors can be independently enabled/disabled by configuring the sample rate register, the sample rate of the sensor can be set, ideal for mobile devices with limited space, such as smart phones, tablets, smart watches and wearables, weather forecasts, vertical speed indicators, flight control devices, indoor and outdoor navigation, smart home devices.

Package include:
5 x GY-BME280-5V BME280 5V Digital Temperature Humidity Sensor