10PC Si7021 GY-21 SHT21 HTU21 Digital Humidity Temperature Sensor Module Replace SHT11 for Low Power CMOS IC Module

10PC Si7021 GY-21 SHT21 HTU21 Digital Humidity Temperature Sensor Module Replace SHT11 for Low Power CMOS IC Module leírása

The humidity and temperature sensor board that carries a digital SHT21 humidity and temperature sensor from Sensirion.
The SHT21 uses a capacitive sensor elements to measure humidity, while temperature is measured by a band space sensor. Both sensors are perfectly coupled to a 14-bit ADC, which then transmits the digital data via the I2C protocol.
It has a 4-pin interface that can communicate directly with the analog pins
Bidirectional communication over a single pin I2C protocol
Board is 5V tolerant, allowing sensor to run from a 5V supply I/O pins

colour:
Material:Electronic component
size:Approximately 1.3 x 1cm

Package Contents:
10 x HTU21D Temperature & Humidity Sensor