5Pcs GY-21 HTU21D Humidity Sensor With I2C Interface For Industrial High Precisi

The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-to-digital

converter, signal processing, calibration data, and an I2C Interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis, and excellent long-term stability. The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required.

The Si7021 is available in a 3x3 mm DFN package and is reflow solderable. It can be used as a hardware- and software-compatible drop-in upgrade for existing Featuring precision sensing over a wider range and lower power consumption. The Si7021 offers an accurate, low-power, factory-calibrated digital solution ideal for measuring humidity, dew-point, and temperature, in applications ranging from HVAC/R and asset tracking to industrial and consumer platforms.

Specification:

1. Power supply: 3-5V
2. Relative humidity: ± 3% RH (max), 0-80% RH
3. Temperature: ±0.4°C (max), -10 to 85°C
4. Operating range: 0 to 100% RH
5. Operating range: Up to -40°C to +125 °C
6. Wide operating voltage: 1.9V - 3.6V
7. Low power consumption: 150 μA active current
8. Standby current: 60 nA
9. Size: 1.3*1cm/0.51*0.39"

Applications:

1. HVAC/R
2. Thermostats/humidistats
3. Respiratory therapy
4. White goods
5. Indoor weather stations
6. Micro-environments/data centers
7. Automotive climate control and defogging
8. Asset and goods tracking
9. Mobile phones and tablets

Packages Include:

5 x GY-21 Humidity Sensor