SCD42

Obsolete

CO₂ accuracy of ± 75 ppm @400-1000 ppm

Distributor list Contact sales

Successor product

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

Specification

CO₂
Specified CO₂ Measurement Range
400 - 2000
400 - 2000 ppm
Accuracy
±75.0
±75.0
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 [°C]
-10 - 60
-10 - 60 °C
Response time (τ63%)
120
120 s

Downloads

Name Type Date File Size
Datasheet SCD42

03/2022

File

994.5 KB

Datasheet 03/2022 PDF 994.5 KB
Datasheet SCD4x

09/2024

File

1.2 MB

Datasheet 09/2024 PDF 1.2 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

11/2024

File

92.7 KB

Certificate 11/2024 PDF 92.7 KB
Carbon Dioxide product flyer

10/2024

File

802.1 KB

Flyer 10/2024 PDF 802.1 KB
Indoor air quality brochure

11/2024

Link

7.7 MB

Flyer 11/2024 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

How to get started

Latest CO₂ sensors

Upcoming

STCC4

CO₂ sensor with unmatched form factor for indoor air quality applications

  • Sensor
  • CO₂
New

SEK-STC31-C

CO₂ evaluation kit STC31-C

  • Evaluation kit
  • CO₂
New

STC31-C

CO₂ accuracy of ±(0.2 - 2.0 vol%) @0-100 vol%

  • Sensor
  • CO₂
Active

SCD41

High CO₂ accuracy with extended measurement range and low power modes

  • Sensor
  • CO₂
Active

SCD4x CO₂ Gadget

SCD4x CO₂ Sensor Demonstrator

  • Reference design
  • CO₂
Active

SEK-SCD30

CO₂ Evaluation kit SCD30

  • Evaluation kit
  • CO₂
Active

SEK-SCD41

CO₂ evaluation kit SCD4x series

  • Evaluation kit
  • CO₂

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.