• 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

    • Internet of things

      Enabling Smart Infrastructure & IoT through high-precision environmental sensing for healthier, more efficient, and fully connected buildings

  • 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
      • Chip mounter
      • Clean cooking (LPG)
      • Combustion control
      • Substrate storage and handling
      • GC analyzer
      • 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
      • 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
    • Growth is our aspiration, our global goal.

      Driving strategic growth areas

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

Back to catalog
New

SEK-SEN66

  • All products
  • •Particulate matter sensors
  • •SEK-SEN6x

Evaluation kit SEN62, SEN65, SEN66

  • All-in-one air quality sensor module
  • RH/T, PM (1, 2.5, 4, 10), VOC and NOx, CO2 outputs
  • On-board algorithms

 

Includes:

  • 1x SEN66
  • 1x adapter cable
  • 1x jumper wire set
  • 1x adapter cable Qwiic

1x SEK-SensorBridge required

See inventoryDistributor listContact sales

Downloads

Drivers for SEN65
  • 09/2025•
  • Link•
Drivers and Sample Code09/2025Link
Drivers for SEN66
  • 02/2025•
  • Link•
Drivers and Sample Code02/2025Link
Compliance of Sensirion’s VOC Sensors with RESET and WELL
  • 04/2023•
  • PDF•
  • 748.3 KB
Application note04/2023PDF748.3 KB
How can I integrate Sensirion’s VOC and NOx sensors into my air purifier?
  • 04/2022•
  • PDF•
  • 249.8 KB
Application note04/2022PDF249.8 KB
Is it possible to map the output of a MOX sensor to a norm?
  • 04/2022•
  • PDF•
  • 258.0 KB
Application note04/2022PDF258.0 KB
What are oxidizing gases?
  • 04/2022•
  • PDF•
  • 214.8 KB
Application note04/2022PDF214.8 KB
What are reducing gases?
  • 04/2022•
  • PDF•
  • 332.0 KB
Application note04/2022PDF332.0 KB
What is a metal oxide (MOX) sensor?
  • 04/2022•
  • PDF•
  • 288.2 KB
Application note04/2022PDF288.2 KB
What is Sensirion’s NOx Index?
  • 04/2022•
  • PDF•
  • 341.2 KB
Application note04/2022PDF341.2 KB
What is Sensirion’s VOC Index?
  • 04/2022•
  • PDF•
  • 300.4 KB
Application note04/2022PDF300.4 KB
Datasheet SEN6x
  • 12/2025•
  • PDF•
  • 1.4 MB
Datasheet12/2025PDF1.4 MB
SEN6x – Mechanical design and assembly guidelines
  • 01/2026•
  • PDF•
  • 736.4 KB
Application note01/2026PDF736.4 KB
Limits of PM2.5 Optical Sensors
  • 01/2026•
  • PDF•
  • 537.8 KB
Guide01/2026PDF537.8 KB
SEN6x Handling instructions
  • 01/2026•
  • PDF•
  • 311.8 KB
Guide01/2026PDF311.8 KB
SEN6x Integrated heater in high- humidity environments
  • 01/2026•
  • PDF•
  • 301.3 KB
Guide01/2026PDF301.3 KB
SEN6x Sensor specification statement
  • 01/2026•
  • PDF•
  • 654.7 KB
Guide01/2026PDF654.7 KB
SEN6x Temperature acceleration and compensation instructions
  • 01/2026•
  • PDF•
  • 1.6 MB
Guide01/2026PDF1.6 MB
SEK-ControlCenter (all devices)
  • Link•
SoftwareLink
Example retainer sealing foam SEN6x
  • 05/2025•
  • STEP•
  • 52.0 KB
Drawings/CAD05/2025STEP52.0 KB
Example retainer SEN6x
  • 05/2025•
  • STEP•
  • 321.4 KB
Drawings/CAD05/2025STEP321.4 KB
STEP file SEN6x
  • 09/2025•
  • STEP•
  • 4.2 MB
Drawings/CAD09/2025STEP4.2 MB
REACH and RoHS declaration Partciulate Matter
  • 04/2026•
  • PDF•
  • 145.6 KB
Certificate04/2026PDF145.6 KB
Indoor air quality brochure
  • 11/2025•
  • PDF•
  • 7.0 MB
Flyer11/2025PDF7.0 MB
Particulate Matter and Environmental Node Flyer
  • 10/2025•
  • PDF•
  • 14.8 MB
Flyer10/2025PDF14.8 MB
Particulate Matter and Environmental Node Flyer Chinese
  • 01/2026•
  • PDF•
  • 891.5 KB
Flyer01/2026PDF891.5 KB
Particulate Matter and Environmental Node Flyer Japanese
  • 04/2026•
  • PDF•
  • 4.4 MB
Flyer04/2026PDF4.4 MB

Compatible products

SEN62Sensing platform for PM and RH/T measurementsSEN6xParticulate matter sensors
SEN65Sensing platform for PM, RH/T, VOC and NOx measurementsSEN6xParticulate matter sensors
SEN66Sensing platform for PM, RH/T, VOC, NOx and CO2 measurementsSEN6xParticulate matter sensors

SEN62

Sensing platform for PM and RH/T measurements

SEN6x

Particulate matter sensors

SEN65

Sensing platform for PM, RH/T, VOC and NOx measurements

SEN6x

Particulate matter sensors

SEN66

Sensing platform for PM, RH/T, VOC, NOx and CO2 measurements

SEN6x

Particulate matter sensors

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.

Latest Particulate matter sensors

Explore
Sensing platform for PM and RH/T measurements
Active

SEN62

Sensing platform for PM and RH/T measurements

  • Particulate matter sensors
Sensing platform for PM, RH/T, VOC, NOx, CO2 and HCHO measurements
Upcoming

SEN69C

Sensing platform for PM, RH/T, VOC, NOx, CO2 and HCHO measurements

  • Particulate matter sensors
Evaluation kit SEN62, SEN63C
New

SEK-SEN63C

Evaluation kit SEN62, SEN63C

  • Particulate matter sensors
Sensing platform for PM, RH/T and CO2 measurements
New

SEN63C

Sensing platform for PM, RH/T and CO2 measurements

  • Particulate matter sensors
Sensing platform for PM, RH/T, VOC, NOx and HCHO measurements
Upcoming

SEN68

Sensing platform for PM, RH/T, VOC, NOx and HCHO measurements

  • Particulate matter sensors
Sensing platform for PM, RH/T, VOC, NOx and CO2 measurements
New

SEN66

Sensing platform for PM, RH/T, VOC, NOx and CO2 measurements

  • Particulate matter sensors
Sensing platform for PM, RH/T, VOC and NOx measurements
New

SEN65

Sensing platform for PM, RH/T, VOC and NOx measurements

  • Particulate matter sensors
  • Home
  • Products
  • Product catalog
  • SEK-SEN66