Product description
The Adafruit SGP41 is a MOX gas sensor for indoor air quality monitoring. The sensor can detect VOC and oxidizing gases such as NOx, and uses separate sensing elements for VOC (Volatile Organic Compounds) and NOx (nitrogen oxides). The sensor measures VOC and NOx signals and uses Sensirion’s Gas Index Algorithm to provide VOC and NOx index values between 1 and 500, where 100 represents a typical indoor environment. The board communicates via I2C and features Qwiic connectors. Supplied with pin headers (not pre-soldered).
Specifications:
- Sensor: Sensirion SGP41
- Sensor type: MOX gas sensor
- Measurement: VOC and NOx
- Output: Raw signals and VOC/NOx index values
- Index range: 1 to 500
- Typical indoor level: 100
- Interface: I2C
- I2C address: 0x59
- Logic level: 3.3V or 5V
- Supply voltage: 3.3V or 5V via VIN
- Regulator output: 3.3V, up to 100mA
- Connection: 2x Qwiic
- Pull-up resistors: 10K on SDA and SCL
- Power LED: Green
- Library support: Arduino and Python/CircuitPython
- Temperature and humidity compensation: Yes, with external temperature and humidity sensor
