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

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I absolutely love this jewelry organizer! The 2-layer design gives it plenty of space without being bulky, making it perfect for travel. I was able to neatly store my earrings, necklaces, rings, and bracelets without anything getting tangled. The interior is soft and protects my jewelry really well, and the compartments are thoughtfully designed to keep everything in place. The compact size fits easily in my suitcase or handbag, which is a huge plus. The cloud white color looks elegant and makes it feel like a great gift option too. Overall, it’s practical, stylish, and very convenient for keeping jewelry organized on the go. Highly

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Reviewed in the United States on April 20, 2026

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Lisa T.

Lexington, US

★★★★★ 5

I bought myself one and this one was gift for a friend.

Color: Cloud White, Material Type: Paper, PU

Very classy travel jewelry box. Just the size. Made well.

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Reviewed in the United States on May 19, 2026

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VICKI CARROLL

Waukegan, US

★★★★★ 4

Nice Jewelry Box

Color: Jelly Pink, Material Type: Paper, PU, Color: Jelly Pink, Material Type: Paper, PU

Really nice jewelry box just smaller than expected. My fault for not checking the dimensions first. It’s a great value for the price.

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Reviewed in the United States on May 11, 2026

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Coco

Cuba, US

★★★★★ 5

Nice little jewelry box

Color: Cloud White, Material Type: Paper, PU

Just what I wanted in size and available compartments. The only thing I am hesitant about is the paper outside. Mine is white and may get dirty quickly.

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Reviewed in the United States on March 16, 2026