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Air Quality Sensor Module With SGP40 VOC Sensor And Humidity Compensated Indoor Air Monitoring
The Gravity SGP40 Air Quality Sensor is a compact indoor air quality monitoring module based on Sensirion’s advanced SGP40 digital VOC sensor. Built on the proven CMOSens technology platform, the sensor integrates a complete sensing system on a single chip, including a temperature-controlled micro-hotplate and humidity-compensated VOC measurement engine. Combined with Sensirion’s powerful VOC algorithm, the sensor provides reliable indoor air quality data that can be directly used to evaluate air quality without requiring complex calibration procedures.
Designed for long-term indoor monitoring applications, the SGP40 features low power consumption of only 2.6mA, a fast response time of 2 seconds, and a compact form factor for easy integration into embedded systems. The Gravity interface simplifies connections with Arduino, ESP32, Raspberry Pi, and other development platforms. The sensor is ideal for smart home devices, air purifiers, ventilation systems, kitchen hoods, HVAC equipment, and IoT-based environmental monitoring solutions.
Key Features

SGP40 VOC Sensor: Advanced digital volatile organic compound sensing.
CMOSens Technology: Integrated sensing and signal processing on a single chip.
Humidity Compensated Measurement: Improved accuracy under varying humidity conditions.
Indoor Air Quality Monitoring: Direct evaluation of indoor air quality levels.
Low Power Consumption: Typical operating current of 2.6mA.
Fast Response Time: Provides measurements within 2 seconds.
No Calibration Required: Ready-to-use air quality evaluation.
Temperature-Controlled Micro-Hotplate: Stable and reliable VOC sensing.
Gravity Interface: Easy integration with development boards.
Compact Module Design: Suitable for embedded applications.
Long-Term Stability: Designed for continuous monitoring systems.
Microcontroller Compatible: Supports Arduino, ESP32, Raspberry Pi, and similar platforms.

Applications

Indoor air quality monitoring
Smart air purifiers
Kitchen hood systems
HVAC control systems
Smart home automation
Environmental monitoring devices
Building air quality management
IoT sensing systems
Office air quality monitoring
Classroom ventilation monitoring
Home automation projects
Continuous indoor environment monitoring

Note:VOC index is obtained by converting the detected ethanol equivalent in air.

Package Contents

Gravity: SGP40 Air Quality Sensor x1

Gravity-4P I2C/UART Sensor Cable x1