TECNOIOT 5pcs sht31 temperatura de tuberías & sht31-d humidity sensor módulos Breakout Weather

X5pcs SHT31 Temperature & SHT31-D Humidity Sensor module Breakout Weather for Arduino
Sensiron Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. And, finally we have some that have a true I2C interface for easy reading. The SHT31-D sensor has an excellent ±2% relative humidity and ±0.3°C accuracy for most uses.
Unlike earlier SHT sensors, this sensor has a true I2C interface, and (bonus!) even with two address options. It also is 3V or 5V compliant, so you can power and communicate with it using just about any microcontroller or microcomputer.
Such a lovely chip – so we spun up a breakout board with the SHT31-D and some supporting circuitry such as pullup resistors and capacitors. Each order comes with one fully assembled and tested PCB breakout and a small piece of header. 
PINS:Vin – this is the power pin. The chip can use 2.5-5VDC for power. To power the board, give it the same power as the logic level of your microcontroller – e.g. for a 5V micro like for Arduino, use 5V. For a 3.3V controller like a Raspbery Pi, connect to 3.3VGND – common ground for power and logicSCL – I2C clock pin, connect to your microcontrollers I2C clock line. This pin has a 10K pullup resistor to VinSDA – I2C data pin, connect to your microcontrollers I2C data line. This pin has a 10K pullup resistor to VinAD – This is the I2C address selection pin. This pin has a 10K pull down resistor to make the default I2C address 0x44. You can tie this pin to Vin to make the address 0x45AL – Alert/Interrupt output. You can set up the sensor to alert you when an event has occured. Check the datasheet for how you can set up the alertsPacket Contains:
5pcs x SHT31 Temperature & SHT31-D Humidity Sensor Module