Adafruit SCD-30 NDIR True CO2 Temperature and Humidity Sensor - STEMMA QT / Qwiic

Adafruit SCD-30 NDIR True CO2 Temperature and Humidity Sensor - STEMMA QT / Qwiic

Marsoni

M251S

$97.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit SCD-30 NDIR True CO2 Temperature and Humidity Sensor - STEMMA QT / QwiicTake a deep breath in now slowly breathe out. The Adafruit SCD 30 is a true NDIR CO2 sensor that measures carbon dioxide concentration in ambient air with an integrated temperature and humidity sensor for compensation and additional environmental data. Perfect for environmental sensing, scientific experiments, air quality, and ventilation studies. NDIR True CO2 sensor technology for accurate CO2 measurement (400 ppm 10,000 ppm) Integrated SHT31

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It is very nice, I have many watches, but this one is the main one I use for casual wear. One thing I do not like: After about two days of either use or not use, the time gets off, by a couple hours but you can put it back pretty easily. And the "day display" on the watch never stays correct due to the fact that every month doesn't have 31 days in it. But other than that, it is a great watch for show, not to keep track of time.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 11, 2026

Verified Purchase

Sterling Churgin

Port Orchard, US

★★★★★ 5

Money Well Spent

Color: Silver Face Brown Band-G8408

I love this little watch, I can count on it every time one of my $10,000 watches stops working. The thing just sits in the drawer and waits for me, I was going to give it to a small child as a gift. I changed my mind only because it's good to know I have a dependable watch somewhere. I guess I'll have to pay attention to the battery at some point but I will change the battery and not just toss the watch..

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 13, 2026