Generic GY-213V-SI7021 Temperature and Humidity Sensor Module - I2C Interface
The GY-213V-SI7021 is a compact I2C temperature and humidity sensor module based on the Sensirion SI7021-A20 IC, offering high-precision environmental monitoring for integration with Arduino, Raspberry Pi, ESP32, and STM32 platforms.
Features
- High-precision Sensirion SI7021-A20 sensor IC for combined temperature and humidity measurement.
- I2C digital interface with a default address of 0x40 for simple microcontroller integration.
- Wide operating voltage range of 2.7V to 5.5V DC, compatible with 3.3V and 5V logic systems.
- Excellent temperature accuracy of ±0.2°C and humidity accuracy of ±2% RH (typical).
- Extended operating temperature range from -40°C to +125°C for demanding environments.
Out of stock
The GY-213V-SI7021 module integrates the Sensirion SI7021-A20, a factory-calibrated CMOSens® chip that provides calibrated, digital output for relative humidity and temperature. The sensor utilizes a polymer-based capacitive sensing element for humidity and a band-gap temperature sensor, ensuring low drift and high stability. The integrated signal conditioning and analog-to-digital converter deliver a clean, ready-to-use digital signal via the I2C bus.
Designed for embedded applications, the module’s compact PCB footprint facilitates easy integration into weather stations, HVAC control systems, data loggers, and IoT devices. Its wide supply voltage range and low power consumption make it suitable for both battery-powered and line-powered systems requiring reliable environmental data.
Additional Information
| Weight | 0.0002 kg |
|---|---|
| Dimensions | 1.55 × 1.46 cm |













