Successor product

Name Description Series Category
SCD41
High CO₂ accuracy with extended measurement range and low power modes SCD4x CO₂

Specification

CO₂
Measurement range
400 - 2000
400 - 2000 ppm
Accuracy: Baseline
±75
±75 ppm
Response time (τ63%)
60
60 s
Humidity
Typ. relative humidity accuracy
6
6 %RH
Operating relative humidity range
0 - 95
0 - 95 %RH
Response time (τ63%)
120
120 s
Calibration certificate
Factory calibration
Factory calibration
Generic
Supply voltage
2.4 - 5.5
2.4 - 5.5 V
Average supply current
18000
18000 uA
Max. supply current
205000
205000 uA
Interfaces
I²C
I²C
Size (LxWxH)
10.1 x 10.1 x 6.5
10.1 x 10.1 x 6.5 mm³
Packaging size
600
600 pcs (T&R)
Temperature
Typ. temperature accuracy
0.8
0.8 °C
Operating temperature range
-10 - 60
-10 - 60 °C
Response time (τ63%)
120
120 s

Technical downloads

Name Type Date File Size
Datasheet SCD42

03/2022

File

994.5 KB

Datasheet 03/2022 PDF 994.5 KB
SCD42 product flyer

10/2021

File

817.9 KB

Flyer 10/2021 PDF 817.9 KB
SEK-ControlCenter (all devices)

10/2021

Link

-

Viewer software 10/2021 Link -
Datasheet SCD40/SCD41

07/2023

File

1.1 MB

Datasheet 07/2023 PDF 1.1 MB
Low power operation SCD4x

07/2022

File

443.0 KB

Application note 07/2022 PDF 443.0 KB
What types of NDIR sensors exist and how do they work?

05/2022

File

146.5 KB

Application note 05/2022 PDF 146.5 KB
What types of NDIR sensors exist and how do they work? (Japanese)

10/2023

File

277.2 KB

Application note 10/2023 PDF 277.2 KB
Design-in guide SCD4x

01/2021

File

478.2 KB

User guide 01/2021 PDF 478.2 KB
Handling instructions SCD4x

01/2021

File

551.9 KB

User guide 01/2021 PDF 551.9 KB
Testing guide SCD4x

10/2021

File

2.0 MB

User guide 10/2021 PDF 2.0 MB
Arduino driver SCD4x

10/2021

Link

-

Software 10/2021 Link -
Arduino snippets SCD4x

10/2021

Link

-

Software 10/2021 Link -
BLE gadget SCD4x

10/2021

Link

-

Software 10/2021 Link -
Embedded driver SCD4x

10/2021

Link

-

Software 10/2021 Link -
Makecode for micro:bit SCD4x

10/2021

Link

-

Software 10/2021 Link -
Python Package SCD4x

10/2021

Link

-

Software 10/2021 Link -
Raspberry Pi driver SCD4x

10/2021

Link

-

Software 10/2021 Link -
Altium footprint SCD4x

10/2021

Link

-

CAD 10/2021 Link -
STEP file SCD4x

10/2021

File

632.1 KB

CAD 10/2021 STEP 632.1 KB
STEP file SEK-SCD41

10/2021

File

770.9 KB

CAD 10/2021 STEP 770.9 KB
Calibration certification SCD4x

05/2022

File

118.0 KB

Certificate 05/2022 PDF 118.0 KB
REACH and RoHS declaration SCDxx

07/2023

File

85.2 KB

Certificate 07/2023 PDF 85.2 KB
Indoor air quality brochure

10/2021

Link

7.7 MB

Flyer 10/2021 Link 7.7 MB
SCD4x product flyer

10/2022

File

1.3 MB

Flyer 10/2022 PDF 1.3 MB
SCD4x product flyer chinese

08/2023

File

895.4 KB

Flyer 08/2023 PDF 895.4 KB
SCD4x product flyer japanese

03/2023

File

1.1 MB

Flyer 03/2023 PDF 1.1 MB

Sensor evaluation

Buy the following products to evaluate this sensor

Name Description Series Category
SEK-SCD41
CO₂ evaluation kit SCD4x series SEK-SCDxx CO₂
SEK-SensorBridge
Connecting bridge with two sensor ports SEK-SensorBridge

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.