SGP40

VOC sensor for HVAC and air quality applications

Specification

VOC
Sensor output
Two digital 16-bit raw signals
Processed output
0-500 VOC Index
Measurement range (TVOC)
0 - 1000
ppm
Response time (τ63%)
< 10
s
Device-to-device var. (TVOC)
±15
% m.v.
Limit of detection
< 0.05 ppm of ethanol equivalents or < 10 % of concentration setpoint, whichever is larger
Switch-on time
1
h
On-chip humidity compensation
Yes
Generic
Supply voltage
1.7 - 3.6
V
Average supply current
2600
μA
Max. supply current
3000
μA
Interfaces
I²C
Package size (LxWxH)
2.44 x 2.44 x 0.85
mm³

Technical downloads

Name
Type
Date
File
Size
Datasheet SGP40
Datasheet
09/2021
PDF
935.9 KB
Transitioning from SGP30 to SGP40
Application note
12/2020
PDF
277.8 KB
Quick testing guide SGP40
User guide
08/2020
PDF
519.6 KB
How can air quality at home be improved?
Application note
04/2022
PDF
260.1 KB
How can I integrate Sensirion’s VOC and NOx sensors into my air purifier?
Application note
04/2022
PDF
249.8 KB
How can I make my air purifier smart/efficient?
Application note
04/2022
PDF
215.4 KB
Is it possible to map the output of a MOX sensor to a norm?
Application note
04/2022
PDF
258.0 KB
What are oxidizing gases?
Application note
04/2022
PDF
214.8 KB
What are reducing gases?
Application note
04/2022
PDF
332.0 KB
What is a metal oxide (MOX) sensor?
Application note
04/2022
PDF
288.2 KB
What is Sensirion’s NOx Index?
Application note
04/2022
PDF
341.2 KB
What is Sensirion’s VOC Index?
Application note
04/2022
PDF
300.4 KB
Design-in guide SGP4x
User guide
08/2020
PDF
304.4 KB
STEP file SGP40
CAD
10/2021
STEP
1.3 MB
REACH and RoHS declaration SGP
Certificate
07/2022
PDF
96.4 KB
Gas sensors brochure
Flyer
07/2021
PDF
996.5 KB
Handling and assembly instructions SGP
User guide
11/2020
PDF
350.0 KB
Indoor air quality brochure
Flyer
10/2021
PDF
7.7 MB

Buy the following product to evaluate this sensor

The SGP40 is Sensirion’s new digital VOC (volatile organic compounds) sensor designed for easy integration into air purifiers or demand-controlled ventilation.

SGP40 is Sensirion’s new digital VOC (volatile organic compounds) sensor designed for easy integration into air treatment devices and air quality monitors. Based on Sensirion’s CMOSens® Technology, the SGP40 offers a complete sensor system on a single chip and features a digital I²C interface, a temperature-controlled micro-hotplate and a humidity-compensated indoor air quality signal. In combination with Sensirion’s powerful VOC Algorithm (part of the gas index algorithm software), the sensor signal can be directly used to evaluate indoor air quality, e.g., for triggering the gradual fan control of an air treatment device. Both the SGP40 chip and VOC algorithm feature unrivalled robustness in the final application over their lifetimes. Pushing the multipixel and multi-hotplate approach to the next level of individual control of each sensing element, the SGP40 enables a drastic reduction in power consumption, making it suitable for battery-driven applications as well. Sensirion’s state-of-the-art production process guarantees high reproducibility and reliability.

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