• Megatrends

    • Energy transition

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

    • Artificial intelligence

      From measurement to smart decisions

    • Emission reduction

      Making emissions visible, measurable, and manageable

    • Health and well-being

      Smarter sensing for cleaner, safer, and more comfortable living

  • Applications

      • Smart inhalers
      • Metabolic breath analysis
      • Subcutaneous drug delivery
      • Mechanical ventilators
      • Infusion
      • Anesthesia machines
      • CPAP devices
      • Heart-lung machines
      • Nitric oxide therapy
      • Urine flow measurement
      • Battery energy storage systems
      • Surface mount technology
      • Clean cooking
      • Combustion control
      • Substrate storage and handling
      • Gas analyzers
      • Gas meters
      • Humidity in oil
      • Photoresist coating and dosing
      • Thin-film deposition and etching
      • 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
      • Vape detectors
      • Sleep quality
      • Metabolic breath analysis
      • 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
      • NOx & VOC
      • 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
      • Hydrogen detection evaluation
      • Download center
      • Evaluation kits
      • Demonstrators and apps
      • FAQ
      • Technical support
      • Distributors
      • GitHub
      • Developer website
      • Distributors' inventory
      • Distributors
      • Representatives
      • Partner access
      • Commercial contact
      • Customized sensors
      • Development

  • Career

      • Find your dream position
      • Working at Sensirion
      • Our locations
      • Our teams
      • Our entities
      • Professionals
      • Graduates
      • Students
      • Apprentices
      • News
      • Events
      • Newsletter
      • WhatsApp news

    • 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

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

Sensirion

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

Contact us

  • General Request
  • Commercial Support Request
  • Technical Support Request
  • Newsletter Registration

Legal notice© Sensirion AG

  • All products
  • NOx & VOC sensors
  • SGP4x

SEK-SGP4x

New

Evaluation Kit for SGP40 / SGP41

Evaluation kit for SGP40 / SGP41

 

The SEK-SGP4x, with an integrated SGP41 on a development board, enables fast testing of both SGP40 and SGP41 for various applications.

 

Includes:

 

1x SGP4x development board

1x adapter cable

1x jumper wire set 

Distributor listContact sales

Downloads

How can air quality at home be improved?

04/2022

File

260.1 KB

Application note04/2022PDF260.1 KB
How can I integrate Sensirion’s VOC and NOx sensors into my air purifier?

04/2022

File

249.8 KB

Application note04/2022PDF249.8 KB
How can I make my air purifier smart/efficient?

04/2022

File

215.4 KB

Application note04/2022PDF215.4 KB
Is it possible to map the output of a MOX sensor to a norm?

04/2022

File

258.0 KB

Application note04/2022PDF258.0 KB
What are oxidizing gases?

04/2022

File

214.8 KB

Application note04/2022PDF214.8 KB
What are reducing gases?

04/2022

File

332.0 KB

Application note04/2022PDF332.0 KB
What is a metal oxide (MOX) sensor?

04/2022

File

288.2 KB

Application note04/2022PDF288.2 KB
What is Sensirion’s NOx Index?

04/2022

File

341.2 KB

Application note04/2022PDF341.2 KB
What is Sensirion’s VOC Index?

04/2022

File

300.4 KB

Application note04/2022PDF300.4 KB
Design-in guide SGP4x

08/2020

File

304.4 KB

Guide08/2020PDF304.4 KB
Testing guide SGP4x

03/2021

File

507.9 KB

Guide03/2021PDF507.9 KB
SEK-ControlCenter (all devices)

Link

SoftwareLink
STEP file SGP40

File

1.3 MB

Drawings/CADSTEP1.3 MB
REACH and RoHS declaration SGP

12/2025

File

94.8 KB

Certificate12/2025PDF94.8 KB
Indoor air quality brochure

11/2025

File

7.0 MB

Flyer11/2025PDF7.0 MB
SGP4x evaluation kit

10/2020

File

1.7 MB

Flyer10/2020PDF1.7 MB
VOC and NOx product flyer

10/2024

File

341.9 KB

Flyer10/2024PDF341.9 KB
VOC and NOx product flyer Chinese

03/2025

File

677.9 KB

Flyer03/2025PDF677.9 KB
VOC and NOx product flyer Japanese

08/2025

File

3.0 MB

Flyer08/2025PDF3.0 MB

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.

  • Home
  • Products
  • Product catalog
  • SEK-SGP4x

Latest NOx & VOC sensors

Explore
Evaluation kit SEK-SVM4x for SGP40/SGP41
Active

SEK-SVM4x

Evaluation kit SEK-SVM4x for SGP40/SGP41

  • NOx & VOC sensors
VOC and NOx sensor for indoor air quality applications
Active

SGP41

VOC and NOx sensor for indoor air quality applications

  • NOx & VOC sensors
VOC sensor for indoor air quality applications
Active

SGP40

VOC sensor for indoor air quality applications

  • NOx & VOC sensors