GY-21 SI7021 High Precision Temperature and humidity sensor module
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Description:
The GY-21 SI7021 High Precision Temperature and Humidity Sensor Module features the SI7021 sensor, renowned for its high accuracy in measuring temperature and humidity. This module is ideal for environmental monitoring, weather stations, and HVAC systems, providing reliable and precise data.
Key Features:
- High Accuracy: Precise temperature and humidity measurements.
- Low Power Consumption: Energy-efficient operation for battery-powered applications.
- Digital Output: I2C interface for easy integration with microcontrollers.
- Compact Design: Small form factor for versatile applications.
- Wide Operating Range: Suitable for various environmental conditions.
- Sensor: SI7021
- Temperature Range: -40°C to +125°C
- Humidity Range: 0% to 100% RH
- Accuracy: ±0.4°C (temperature), ±3% RH (humidity)
- Operating Voltage: 1.9V to 3.6V DC
- Interface: I2C
- Dimensions: Compact module size for easy integration
- Weight: Lightweight design for minimal impact
- Environmental Monitoring: Measuring temperature and humidity for climate studies.
- Weather Stations: Providing accurate weather data.
- HVAC Systems: Monitoring and controlling indoor air quality.
- Industrial Automation: Ensuring optimal conditions in manufacturing processes.
- Home Automation: Integrating with smart home systems for climate control.
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment