SCD41 CO2 Sensor Breakout (Carbon Dioxide / Temperature / Humidity)

SKU: PIM587 Brand: Pimoroni
A true carbon dioxide sensor that can detect CO2 levels between 400 and 5,000 ppm, mounted on a Breakout Garden and Qw/ST-compatible breakout. SCD41 is...
$129.95 AUD, inc GST
$118.14 AUD, exc GST

Available with a lead time
Expect dispatch between Apr 08 and Apr 10

Quantity Discounts:

  • 5-10 $113.41 (exc GST)
  • 10+ $109.86 (exc GST)
- +

0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $6+ Standard (5+ days*, tracked)
  • $10+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

A true carbon dioxide sensor that can detect CO2 levels between 400 and 5,000 ppm, mounted on a Breakout Garden and Qw/ST-compatible breakout.

SCD41 is a high accuracy sensor that uses photoacoustic technology to tell you the precise proportion of carbon dioxide (in ppm) of the air that you're breathing. It can also measure temperature and relative humidity.

Too much carbon dioxide has all sorts of unpleasant effects on humans, such as turning up your tiredness levels and turning down your brain power. CO2 build-up is a useful indicator of how well ventilated a space is and also how many people are breathing the same air - a variable that's definitely worth tracking in homes, workplaces and schools at the moment. SCD41 is the extended range variant of this sensor which means it can detect very high levels of CO2 at up to 5,000 ppm, so it could potentially also be useful in industrial and laboratory settings.

Pimoroni has been testing out this sensor in some of the more confined scuppers and bilges of Pimoroni HQ, and it's remarkable how sensitive it is - you can really see the change in CO2 levels when someone enters or leaves a room, or when doors are open or closed.

This breakout is compatible with our fancy Breakout Garden system, where using breakouts is as easy just popping it into one of the slots and starting to grow your project, create, and code. It's also Qw/ST compatible so it can be plugged into a whole range of different microcontrollers and HATs with Qwiic or STEMMA QT connectors.

Features

  • Sensiron SCD41 carbon dioxide sensor (datasheet)
    • Photoacoustic sensor technology PASens®
    • High accuracy: ±(40 ppm + 5 %)
    • Range: 400 ppm – 5,000 ppm
  • I2C interface, with address: 0x62
  • Qwiic/STEMMA QT connector
  • 3-5V compatible
  • Reverse polarity protection (on Breakout Garden connector)
  • Raspberry Pi-compatible pinout (pins 1, 3, 5, 7, 9)
  • Compatible with Raspberry Pi (Python library)
  • Compatible with Raspberry Pi Pico (C++/MicroPython libraries)
  • Schematic

Kit includes

  • SCD41 breakout
  • 1x5 male header
  • 1x5 female right angle header

Pimoroni has designed this breakout board so that you can solder on the piece of right angle female header and pop it straight onto the bottom left 5 pins on your Raspberry Pi's GPIO header (pins 1, 3, 5, 7, 9). The right angle header also has the advantage of positioning the breakout away from the Pi's CPU so as to minimise radiated heat.

Software

Pimoroni has put together a Python library together with examples showing you how to get readings from the sensor. 

You can also use this breakout with Raspberry Pi Pico and other RP2040 boards, using C++ or Pirate brand MicroPython.

Notes

  • Dimensions: approx 24mm x 21mm x 8mm (L x W x H, including sensor)
  • Mounting holes diameter: 2.5mm

This product is listed in:

Sensors>Gas & Smoke

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $6+ for Standard Post (typically 6+ business days, tracked)
  • $10+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!

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