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STCC4

CO₂ sensor with unmatched form factor for indoor air quality applications

STCC4 offers one of the smallest form factors on the market for direct measurement of CO2, unlocking new applications previously limited by size and cost constraints. Designed for seamless integration into compact electronic devices, the sensor is a groundbreaking newcomer in the CO2 sensor market.

 

Utilizing the latest technological advancements in thermal conductivity sensing, the fully factory calibrated STCC4 provides the accuracy needed for indoor air quality applications at a low current consumption. Both accurate signal compensation and monitoring of relevant indoor environmental parameters are achieved when STCC4 is combined with our industry-leading temperature and humidity sensors. Optimized for high volume assembly through its SMD design and tape & reel packaging, it is suitable for a wide range of applications, including indoor air quality monitors, smart thermostats, air conditioners and much more.

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Specification

CO₂
Specified CO₂ Measurement Range
400 - 5000
400 - 5000ppm
Accuracy
±100.0 ppm ±10.0 %m.v.
±100.0 ppm ±10.0 %m.v.
Response time (τ63%)
20
20s
Generic
Supply voltage
2.7 - 5.5
2.7 - 5.5V
Average supply current
950
950uA
Max. supply current
4.2
4.2mA
Operating temperature range [°C]
10 - 40
10 - 40°C
Interfaces
I²C
I²C
Size (LxWxH)
4 x 3 x 1.2
4 x 3 x 1.2mm
Packaging size
1500
1500pcs (T&R)

Downloads

Datasheet STCC4

06/2025

File

743.8 KB

Datasheet06/2025PDF743.8 KB
Carbon Dioxide product flyer

07/2025

File

881.9 KB

Flyer07/2025PDF881.9 KB
Carbon Dioxide product flyer Chinese

07/2025

File

960.9 KB

Flyer07/2025PDF960.9 KB
Handling instructions STCC4

07/2025

File

615.7 KB

Guide07/2025PDF615.7 KB
Arduino driver STCC4

06/2025

Link

Software06/2025Link
Embedded driver STCC4

06/2025

Link

Software06/2025Link
Python driver STCC4

06/2025

Link

Software06/2025Link
Raspberry Pi driver STCC4

06/2025

Link

Software06/2025Link
STEP file STCC4

06/2025

File

1.6 MB

Drawings/CAD06/2025STEP1.6 MB
REACH and RoHS declaration SCDxx

03/2025

File

85.0 KB

Certificate03/2025PDF85.0 KB
Carbon dioxide product flyer Japanese

07/2025

File

1.2 MB

Flyer07/2025PDF1.2 MB
Indoor air quality brochure

11/2024

Link

7.7 MB

Flyer11/2024Link7.7 MB
  • STCC4
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Sensor evaluation

Buy the following products to evaluate this sensor

NameDescriptionSeriesCategory
SEK-STCC4Evaluation kit for CO2 sensor STCC4SEK-STCC4CO₂

SEK-STCC4

Evaluation kit for CO2 sensor STCC4

SEK-STCC4

CO₂

Download the respective viewer software to start measuring

Go to download center

Start testing our sensors fast and easy with the evaluation kits

How to get started

Smart sensors for your application

Sensirion's sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.

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