Description
The HTU21D is a low cost easy to use high precision digital humidity and temperature sensor. This sensor is ideal for environmental touch and data logging and is perfect for a weather station or humidor control system. All you need is two lines for I2C communication and youâll have a relative humidity reading and very accurate temperature index as a bonus!
Only 4 pins need to hook up 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 4.7k pull up resistors for I2C communications. If youâre hook up multiple I2C devices on the same bus you are able to disable the Power supply resistor: 1.5V-3.6V
Specifications:
- Humidity measuring range: 0-100% RH
- Temperature measuring range: -40degree105degree
- Max. Power consumption: 2.7uW
- Communication: I2C
- Humidity accuracy (10% RH to 95% RH): ± 2% RH HTU21DA
- Humidity Delay: +/- 1% RH
- measurement time: 50 ms
- years: - 0.5% RH / year
- Response Time: 5S
- Size: 1.5 x 1.6 cm (approx.)
Package Includes:
- 1 x HTU21D Temperature Humidity Sensor