Quick Overview 

• Digital humidity and temperature sensor
• Environmental sensing & data logging
• I2C communication
• Operating voltage: 1.5V - 3.6
• Humidity measurement range: 0 - 100%RH
• Temperature measurement range : -40 °C - 105 °C

Product Description

       The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for weather stations or humidor control systems. All you need is two lines for I2C communication and you’ll have relative humidity readings and very accurate temperature readings .It is a very good replacement for digital humidity sensors such as the SHT15, SHT21, SHT25, HIH-4030, HIH6130 and capacitive humidity sensors such as the HH10D.