• Megatrends

    • Indoor air quality

      The air we breathe is the basis of a healthy life: how to measure and improve it

    • Digital health

      Patient-focused sensor technology is shaping the future of healthcare

    • Autonomous Driving

      Monitoring water ingress to make safe autonomous driving a reality

    • Energy transition

      The energy transition is key to a sustainable future – driven by innovative technologies and smart solutions

  • Applications

      • Smart inhalers
      • Breath analyzers
      • Subcutaneous drug delivery
      • Mechanical ventilators
      • Infusion
      • Anesthesia machines
      • CPAP devices
      • Heart-lung machines
      • Nitric oxide therapy
      • Urine flow measurement
      • Battery energy storage systems
      • Chip mounters
      • Clean cooking
      • Combustion control
      • Front opening unified pods
      • Gas analyzers
      • Gas meters
      • Humidity in oil
      • Photoresist dosing
      • Surface coating/treatment
      • Gas purging
      • Transport of pharmaceutical goods
      • Transport of perishable goods
      • Bioreactors
      • Condition monitoring & instrument diagnostics
      • Custom manifold solutions
      • DNA sequencing
      • Flow cytometry
      • Gas chromatography
      • Liquid chromatography
      • Mass spectrometry
      • Microfluidics
      • Thermal analysis
      • Refrigerators
      • Demand-controlled ventilators
      • Room sensors
      • VAV controllers
      • Filter monitoring
      • Refrigerant leakage detection
      • Air conditioners
      • Air purifiers
      • Thermostats
      • Indoor air quality monitors
      • Smart speakers
      • Air intake
      • Antifogging
      • Brake-by-wire systems
      • Humanoid robots
      • H2 monitoring in fuel cells
      • LiDAR systems
      • Safety of electric vehicles
      • Steer-by-wire systems
  • Products

      • Find your product
      • Humidity
      • Temperature
      • VOCs/NOx
      • Formaldehyde
      • CO₂
      • Particulate matter
      • Refrigerants
      • Liquid flow
      • Differential pressure
      • Gas flow
      • Mass flow controllers
      • Gas metering solutions
      • Gas analyzers
      • Evaluation kits
      • ControlCenter
      • SEK-SensorBridge
      • Humidity/temperature
      • VOCs/NOx
      • Formaldehyde
      • CO₂
      • Particulate matter
      • Liquid flow
      • Differential pressure
      • Gas flow sensors
      • Mass flow controllers
      • Download center
      • Evaluation kits
      • Demonstrators and apps
      • FAQ
      • Support form
      • Distributors
      • GitHub
      • Developer website
      • Distributors' inventory
      • Distributors
      • Representatives
      • Partner access
      • Contact form
      • Customized sensors
      • Development
  • Career

      • Find your dream position
      • Working at Sensirion
      • Our locations
      • Our teams
      • Top employer
      • Professionals
      • Graduates
      • Students
      • Apprentices
      • News
      • Events
      • Newsletter
      • WhatsApp news
      • Employee stories
    • Contact our P&C Team
  • Company

      • Company profile
      • Locations
      • Contact
      • Sustainability compliance
      • Energy efficency
      • Improving health
      • Ensuring safety and comfort
      • Technology
      • Encouraging innovation
      • Quality and reliability
      • All news
      • Press releases & news
      • Specialist articles
      • Events
      • Webinars
      • Newsletter
      • At a glance
      • Share information
      • Ad-hoc news
      • Financial newsletter
      • Events
      • Results and reports
      • Annual general meeting
      • Corporate governance
      • Sustainability
    • We make the difference in sensing for a better world.

      Future innovations

Directly to

  • Support
  • Product catalog
  • Newsroom
  • Work at Sensirion
  • Technical downloads

Sensirion

  • Developers platform
  • Sensirion Automotive Solutions
  • Qmicro by Sensirion
  • Sensirion Connected Solutions

Contact us

  • General request
  • Support request
  • Newsletter registration

Legal notice© Sensirion AG

SCD30

CO₂ accuracy of ±(30 ppm + 3% MV) @400-10000 ppm

The SCD30 is a highly accurate CO2 sensor module based on our patented CMOSens® Technology for IR detection that includes a best-in-class humidity and temperature sensor. This allows ambient humidity and temperature to be outputted through modeling and compensating of external heat sources without the requirement for any additional components. The module’s dual-channel principle enables excellent long-term stability by design, and its ultra-thin package size allows easy integration into even the most demanding applications. 

 

Applications requiring compliance with IAQ standards – such as EN50543, RESET®, WELL Building Standard™ and California Title 24 Building Energy Efficiency Standards – are well served by the SCD30.

See inventoryDistributor listContact sales

Specification

CO₂
Specified CO₂ Measurement Range
400 - 10000
400 - 10000ppm
Accuracy
±30.0 ppm ±3.0 %m.v.
±30.0 ppm ±3.0 %m.v.
Response time (τ63%)
20
20s
Temperature stability
2.5
2.5ppm/°C
Humidity
Typ. relative humidity accuracy
3
3%RH
Operating relative humidity range
0 - 95
0 - 95%RH
Response time (τ63%)
8
8s
Calibration certificate
Factory calibration
Factory calibration
Generic
Supply voltage
3.3 - 5.5
3.3 - 5.5V
Average supply current
19
19mA
Max. supply current
75
75mA
Operating temperature range [°C]
0 - 50
0 - 50°C
Interfaces
I²C, ModBus, PWM
I²C, ModBus, PWM
Size (LxWxH)
35 x 23 x 7
35 x 23 x 7mm
Packaging size
40
40pcs (Tray)
Temperature
Typ. temperature accuracy
0.4
0.4°C
Response time (τ63%)
10
10s

Downloads

Datasheet SCD30

05/2020

File

570.9 KB

Datasheet05/2020PDF570.9 KB
Low power operation SCD4x

07/2022

File

443.0 KB

Application note07/2022PDF443.0 KB
Design-in guide SCD4x

01/2021

File

478.2 KB

Guide01/2021PDF478.2 KB
Handling instructions SCD4x

02/2025

File

360.3 KB

Guide02/2025PDF360.3 KB
Testing guide SCD4x

File

2.0 MB

GuidePDF2.0 MB
Arduino driver SCD4x

Link

SoftwareLink
Arduino snippets SCD4x

Link

SoftwareLink
BLE gadget SCD4x

Link

SoftwareLink
Embedded driver SCD4x

Link

SoftwareLink
Makecode for micro:bit SCD4x

Link

SoftwareLink
Python driver SCD4x

Link

SoftwareLink
Raspberry Pi driver SCD4x

Link

SoftwareLink
SEK-ControlCenter (all devices)

Link

SoftwareLink
Altium footprint SCD4x

Link

Drawings/CADLink
STEP file SCD4x

File

632.1 KB

Drawings/CADSTEP632.1 KB
Calibration certification SCD4x

05/2022

File

118.0 KB

Certificate05/2022PDF118.0 KB
Carbon Dioxide product flyer

08/2025

File

888.7 KB

Flyer08/2025PDF888.7 KB
Carbon Dioxide product flyer Chinese

07/2025

File

960.9 KB

Flyer07/2025PDF960.9 KB
Field calibration SCD30

09/2018

File

364.5 KB

Application note09/2018PDF364.5 KB
Low power mode SCD30

12/2018

File

449.9 KB

Application note12/2018PDF449.9 KB
Packaging specification SCD30

04/2019

File

117.1 KB

Application note04/2019PDF117.1 KB
Design-in guide SCD30

02/2019

File

323.4 KB

Guide02/2019PDF323.4 KB
Handling and assembly guide SCD30

02/2019

File

192.3 KB

Guide02/2019PDF192.3 KB
Handling guideline SCD30

03/2019

File

296.1 KB

Guide03/2019PDF296.1 KB
Interface description SCD30

05/2020

File

1.1 MB

Guide05/2020PDF1.1 MB
Sample code SCD30

11/2020

Link

Software11/2020Link
STEP file SCD30

File

1.4 MB

Drawings/CADZIP1.4 MB
Calibration certification SCD30

01/2023

File

142.3 KB

Certificate01/2023PDF142.3 KB
MSDS SCD30

05/2016

File

181.3 KB

Certificate05/2016PDF181.3 KB
REACH and RoHS declaration SCDxx, STCC4 and CO2 Gadget

03/2025

File

106.9 KB

Certificate03/2025PDF106.9 KB
Carbon dioxide product flyer Japanese

09/2025

File

1.2 MB

Flyer09/2025PDF1.2 MB
Indoor air quality brochure

11/2024

Link

7.7 MB

Flyer11/2024Link7.7 MB
Product flyer SCD30

12/2017

File

1006.4 KB

Flyer12/2017PDF1006.4 KB

Sensor evaluation

Buy the following products to evaluate this sensor

NameDescriptionSeriesCategory
SEK-SCD30CO₂ Evaluation kit SCD30SEK-SCDxxCO₂
SEK-SensorBridgeConnecting bridge with two sensor portsSEK-SensorBridge

SEK-SCD30

CO₂ Evaluation kit SCD30

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.

  • All products
  • CO₂
  • SCD30

Latest co2 sensors

Explore
Evaluation kit for SCD43 CO2 sensors
New

SEK-SCD43

  • Evaluation kit
  • CO₂
Evaluation kit for CO2 sensor STCC4
New

SEK-STCC4

  • Evaluation kit
  • CO₂
High CO₂ accuracy with comprehensive building standard compatibility
New

SCD43

  • Sensor
  • CO₂
CO₂ sensor with unmatched form factor for indoor air quality applications
New

STCC4

  • Sensor
  • CO₂
CO₂ evaluation kit STC31-C
New

SEK-STC31-C

  • Evaluation kit
  • CO₂
CO₂ accuracy of ±(0.2 - 2.0 vol%) @0-100 vol%
New

STC31-C

  • Sensor
  • CO₂
Improved CO₂ accuracy with extended measurement range and single-shot mode
Active

SCD41

  • Sensor
  • CO₂

Evaluation kit for SCD43 CO2 sensors

Evaluation kit for CO2 sensor STCC4

High CO₂ accuracy with comprehensive building standard compatibility

CO₂ sensor with unmatched form factor for indoor air quality applications

CO₂ evaluation kit STC31-C

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

Improved CO₂ accuracy with extended measurement range and single-shot mode