7Semi SGP40 VOC Air Quality Sensor Breakout with Qwiic I2C Interface
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The 7Semi SGP40 VOC Air Quality Sensor Breakout is designed for creators, engineers, and HVAC professionals who need accurate and dependable indoor air quality measurement.
Built around Sensirion’s advanced SGP40 sensor, it detects a wide range of volatile organic compounds with high sensitivity, making it ideal for smart home automation, air purifiers, and environmental monitoring projects.
Its compact 19 x 19 mm footprint and low power consumption make it an excellent fit for battery-powered devices and space-constrained applications.
With its digital I2C interface and compatibility with both 3.3V and 5V systems, this breakout offers effortless integration with popular microcontroller platforms.
The built-in VOC Index algorithm translates raw sensor data into an easy-to-understand metric, helping users track real-time changes in indoor air quality.
Whether you're building a DIY sensor hub or upgrading an advanced HVAC system, this VOC sensor module provides reliable, fast, and consistent performance.
| Specification | Details |
|---|---|
| Sensor Type | Sensirion SGP40 VOC Sensor |
| Interface | I2C |
| Supply Voltage | 3.3V / 5V |
| Current Consumption | 2.6–3.5 mA |
| Measurement Range | 0–1000 ppm ethanol equivalents |
| Sensor Output | 16-bit digital raw signal |
| Processed Output | VOC Index |
| Response Time | 10 seconds (63% tau) |
| Limit of Detection | 0.05 ppm ethanol equivalents |
| Warm-up Time | 60 seconds |
| Module Dimensions | 19 × 19 mm |
This product comes with a 6 months manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.
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