SparkFun Air Quality Sensor – SGP40 (Qwiic)
$16.95
Description
- SparkFun Air Quality Sensor – SGP40 (Qwiic)
- Provides a measurement of the quality of the air
- Based on Sensirions CMOSens technology
- Qwiic compatible
- Uses I2C interface
- Operating voltage range: 1.7 – 3.6 V
The SparkFun Air Quality Sensor – SGP40 (Qwiic) is a digital gas sensor designed for easy integration into air purifiers or demand-controlled ventilation systems.
Sensirion’s CMOSens technology offers a complete, easy-to-use sensor system on a single chip featuring a digital I2C interface and a temperature-controlled micro hotplate, providing a humidity compensated VOC-based indoor air quality signal.
- 1x SparkFun Air Quality Sensor – SGP40 (Qwiic)
Size
- 1 x 1 inch (L x W)
Uses I2C interface (Qwiic-enabled)
- I2C Address: 0x59
- 2x Qwiic connectors
Operating voltage range
- 1.7 – 3.6 V (Typ. 3.3 V)
- The Qwiic interface provides 3.3 V
Typical current consumption
- 2.6 mA during continuous operation (at 3.3 V)
- 34µA when idle (heater off)
Output signal
- Digital raw value (SRAW): 0 – 65535 ticks
- Digital processed value (VOC Index): 0 – 500 VOC Index points
Switch-on behavior
- Time until reliably detecting VOC events: <60s
- Time until specifications are met: <1h
Recommended sampling interval
- VOC Index: 1s
- SRAW: 0.5s – 10s (Typ. 1s)


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