2PCS/LOT Humidity Sensor with I2C IIC Interface Si7021 Industrial High Precision GY-21 Temperature Sensor Module Low Power CMOS IC Module (Size : 2pcs)
Package included: 2Pcs Si7021 GY-21 SHT21 HTU21 Pressure Sensor ModuleHow to Use：The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-to- digitalconverter, 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 stabilityThe 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 requiredThe 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 RH/temperature sensors in 3x3 mm DFN-6 packages, featuring precision sensing over a wider range and lower power consumption. The optional factory-installed cover offers a low profile, convenient means of protecting the sensor during assembly (e.g., reflow soldering) and throughout the life of the product, excluding liquids (hydrophobic/oleophobic) and particulatesThe 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 platformsFeatures:Precision Relative Humidity Sensor± 3% RH (max), 0-80% RHHigh Accuracy Temperature Sensor±0.4 °C (max), -10 to 85 °C0 to 100% RH operating rangeUp to -40 to +125 °C operating rangeWide operating voltage (1.9 t
Product Features
- GY-21 is a high-precision, small size, ultra-low power pressure sensor that can be used in mobile devices, perfect for your project.
- The SHT21 uses a capacitive sensor element to measure humidity, while temperature is measured by a band gap sensor.
- Both sensors are perfectly coupled to a 14-bit ADC, which then transmits the digital data via the I2C protocol.
- Low power consumption, high energy efficient.
- Application for:GPS precise navigation;Indoor and outdoor navigation;Leisure, sports and medical health monitoring;Weather forecast;Vertical speed indication.
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