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 a weather stations or humidor control systems. All you need is two lines for I2C communication and youll have relative humidity readings and very accurate temperature readings as a bonus! There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines for I2C communication. This breakout board has built in 4.7 k pull up resistors for I2C communications. If youre hooking up multiple I2C devices on the same bus, you may want to disable these resistors.
Specification Supply voltage: 1.5V - 3.6
Humidity measuring range: 0-100% RH
Temperature measuring range: -40 105
Maximum power consumption: 2.7 uW
Communication: I2C Humidity accuracy range (10% RH to 95%
RH): HTU21D ± 2% RH
Humidity Hysteresis: ± 1% RH
Measurement time: 50ms
In drift: - 0.5 % RH / year
Response time: 5 s
Package Inlcuded: 1*HTU21D Temperature Humidity Sensor Breakout Module