Please chose quantity and model 5v or 3.3 volt that you need..
These are Temperature & Humidity sensors with square chip.
GY-BME280 BME280 Digital 5V
1.The BME280 sensor can be independently enabled / disabled, which can measure not only the temperature humidity, but also the pressure.
2.The BME280 sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
3.Our BME280 Sensor is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are good, you can also use it as an altimeter with ±1 meter accuracy.
4.BME280 Atmospheric Pressure Sensor Temperature Humidity Sensor Breakout for Arduino:

GY-BME280 BME280 Digital 3.3V
The board has selectable I2C address jumper (solder link GS2), I2C pull-up resistors, 7 pin header 2.54mm, 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.
BME280 3.3V 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
- Operating range -40…+85 C, 0…100 % rel. humidity, 300…1100 hPa-