
SGP40 Digital VOC Gas Sensor for Air Quality and Treatment Devices I2C Support
Download User Guide for SGP40 VOC Gas Sensor
This is low power consumption and a cost-effective digital VOC Gas sensor for air quality monitoring applications. The digital SGP40 Volatile Organic Compounds (VOC) Gas Sensor communicates through the I2C bus interface. This lightweight module weighs just 6 grams and its minimal form factor lets you incorporate the sensor into air treatment devices and quality monitors.
Features of SGP40 Digital VOC Gas Sensor
- Measuring range from 0 ppm to 1000 ppm of ethanol equivalents
- SGP40 VOC Sensor measures natural gas emissions, fire coal, cooking / cigarette smoke
- Low interference digital I2C output
- Operating voltage 3.3V / 5V with onboard voltage translator
- Humidity compensation
- Low heat dissipation
- User manual, development resources, and examples for Raspberry Pi, STM32, and Arduino are included




Specifications of SGP40 Digital VOC Gas Sensor
- Sensor: SGP40
- Communication Bus: I2C (0x59 constant address)
- 0 4PIN Wire (Approximately 20 cm long) is included
- Measuring Range: 0 ppm to 1000 ppm of ethanol equivalents
- Operating Voltage: 3.3V / 5V
- Response Time: < 10 seconds (tau 63%)
- Switch-ON Time: < 60 seconds
- Mounting Hole Size: 2.0 mm
- Weight: 6 grams
- Dimensions: 27 mm x 20 mm | 2.7 cm x 2.0 cm
Items Included
- SGP40 VOC Sensor (1)
- Approximately 20cm long PH2.0 4PIN Wire (1)