SGP41
VOC and NOx sensor for indoor air quality applications
<p>The SGP41 is Sensirion’s new VOC and NOx sensor designed as digital smart switch and regulation unit for air treatment devices such as air purifiers. </p><p> </p><p>The two sensor signals processed by Sensirion’s powerful Gas Index Algorithm can be directly used to automatically trigger the removal of indoor air gas pollutants by air treatment devices without the need for user–device interaction. This sensor solution is thus well-suited for constantly monitoring the VOC and NOx situation including potentially harmful events which are not perceived by humans. Furthermore, an automatic control of air treatment devices based on the SGP41 signals helps to save energy by turning them off once the VOC and/or NOx events have been taken care off. </p><p> </p><p>SGP41 offers a solution for two complete sensors on a single chip facilitating design-in and saving design costs. Thanks to its very small DFN package (2.44 x 2.44 x 0.85 mm³) the sensor can be designed into applications with limited spaces. SGP41’s multi-pixel sensing element features an unmatched robustness against contaminating gases which are present in real-world applications enabling unique long-term stability as well as low drift. Sensirion’s state-of-the-art production process guarantees high reproducibility and reliability. Tape and reel packaging together with suitability for standard SMD assembly processes make the SGP41 predestined for high volume applications. On top of that, the SGP41 is compliant with the relevant healthy building standards RESET® and WELL Building Standard™.</p>
Specification
| VOC | |||
|---|---|---|---|
| Sensor output
Digital 16-bit raw signal
| Digital 16-bit raw signal | ||
| Processed output
0-500 VOC Index
| 0-500 VOC Index | ||
| Measurement range
0 - 1000
| 0 - 1000 | ppm | |
| Response time (τ63%)
< 10
| < 10 | s | |
| Device-to-device var.
±15
| ±15 | % m.v. | |
| Limit of detection
< 0.05 ppm of ethanol equivalents or < 10 % of concentration setpoint, whichever is larger
| < 0.05 ppm of ethanol equivalents or < 10 % of concentration setpoint, whichever is larger | ||
| Switch-on time
1
| 1 | h | |
| On-chip humidity compensation
Yes
| Yes |
| Generic | |||
|---|---|---|---|
| Supply voltage
1.7 - 3.6
| 1.7 - 3.6 | V | |
| Average supply current
3000
| 3000 | uA | |
| Max. supply current
3400
| 3400 | uA | |
| Interfaces
I²C
| I²C | ||
| Size (LxWxH)
2.44 x 2.44 x 0.85
| 2.44 x 2.44 x 0.85 | mm³ |
Downloads
Sensor evaluation
Buy the following products to evaluate this sensor
| Name | Description | Series | Category |
|---|---|---|---|
 SEK-SVM4x | Evaluation kit SEK-SVM4x for SGP40/SGP41 | SEK-SVMxx | VOC |
Download the respective viewer software to start measuring
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How to get startedLatest VOC sensors
SEK-SVM4x
Evaluation kit SEK-SVM4x for SGP40/SGP41
- Evaluation kit
- VOC
SGP40
VOC sensor for indoor air quality applications
- Sensor
- VOC
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