SCD40

CO₂ accuracy of ±(50 ppm + 5% MV) @400-2000 ppm

Specification

CO₂
Measurement range
400 - 2000
400 - 2000 ppm
Accuracy: Baseline
±50
±50 ppm
Accuracy: Linearity
±5.0%MV
±5.0%MV 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%)
90
90 s
Calibration certificate
Factory calibration
Factory calibration
Generic
Supply voltage
2.4 - 5.5
2.4 - 5.5 V
Average supply current
15
15 mA
Max. supply current
205
205 mA
Interfaces
I²C
I²C
Size (LxWxH)
10.1 x 10.1 x 6.5
10.1 x 10.1 x 6.5 mm³
Packaging size
60 and 600
60 and 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 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

Guide 01/2021 PDF 478.2 KB
Handling instructions SCD4x

01/2021

File

551.9 KB

Guide 01/2021 PDF 551.9 KB
Testing guide SCD4x

10/2021

File

2.0 MB

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 -
SEK-ControlCenter (all devices)

10/2021

Link

-

Software 10/2021 Link -
Altium footprint SCD4x

10/2021

Link

-

Drawings/CAD 10/2021 Link -
STEP file SCD4x

10/2021

File

632.1 KB

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

10/2021

File

770.9 KB

Drawings/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
Carbon Dioxide product flyer

10/2022

File

670.3 KB

Flyer 10/2022 PDF 670.3 KB
Indoor air quality brochure

10/2021

Link

7.7 MB

Flyer 10/2021 Link 7.7 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

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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.