


Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / QwiicThe SCD 40 is a photoacoustic "true" CO2 sensor that accurately measures the concentration of carbon dioxide (CO2) in ambient air. Unlike sensors like the SGP30, which approximate CO2 levels from VOC gas concentration, the SCD 40 directly measures CO2 in parts per million (PPM), making it a reliable tool for environmental sensing, air quality monitoring, scientific experiments, and ventilation studies. While it is larger and more expensive than some
Quick Dispatch:
Your Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic ships.
Need Help?
Questions about Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic in your area.
Get Shipping Estimates
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
4.7 ★★★★★
Based on 2499 reviews
Sort
Product Reviews
★★★★★ 5
Lots of storage but compact look
Color: Mocha Brown
I was looking for something for my corporate 9-5 and was over a tote bag. This is perfect! It fits so much without it feeling or looking bulky. Love the amount of storage it has and I think it would even be a good travel bag
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 1
Defective
Super cute bag, unfortunately it was less than functional.
The main zipper cannot zip up completely, as it has been sewn incorrectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
★★★★★ 5
Leather Backpack
Great backpack for the price. It’s not too bulky and it’s stylish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 3
My bag strap pulling out.
Color: Camel, Color: Camel
I got this bag as a gift from July and started using it in the middle of September for work. I love it but the left strap is pulling off. I am very disappointed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2025
★★★★★ 5
Looks great and comfortable
Color: Mocha Brown
Perfect for a business situation and still convenient since it’s a backpack
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2025
recommand products
Naruto: Shippuden - Grandista - Sasuke Uchiha 24cm [BANPRESTO]
35.00
Re:Zero: Starting Life in Another World - Trio-Try-It Figure - Rem Bridesmaid [FuRyu]
30.00
Re:Zero Starting Life in Another World - Glitter & Glamours - Ram (Another Color Ver. Pink) 23cm [BANPRESTO]
25.00
Kuroko's Basketball: The Movie Last Game - Shintaro Midorima 13cm [BANPRESTO]
30.00
Dragon Ball Z: Dragon Ball Series - GxMateria - Recoome Figure 11cm [BANPRESTO]
30.00