Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic

Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor - STEMMA QT / Qwiic

Marsoni

M251S

$63.00

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

Easy Shipping

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

Country Zip/Postal Code

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

I got these for my husband to wear with jeans or business casual dress pants. They look sharp and professional and dress up jeans if you're going out. He says they fit comfortably and he can walk on them all day without his feet hurting. They are beautiful genuine leather so they don't get stinky. I got my husband's normal size and they fit to size.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 11, 2026

Verified Purchase

timothy scalabrelli

Massapequa, US

★★★★★ 4

Comfortable

Size: 9, Color: Black/Ivory

Most comfortable and roomy shoes I ever wore. Great for insoles. Looks nice too. The base of the shoe is a bit too thick but it’s fine.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on September 5, 2025