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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Once it’s installed it looks great. As someone else had mentioned the instructions are pretty useless. This item comes with screws and wall anchors. If given the chance, install into studs or use different plugs. The ones provided are terrible. I wanted this shelf unit centered in the wall where it was hung. To do this, I had to use the anchors, and not really giving any thought to it, opted to use the ones provided. They flat out suck. So, I then opted to hang it off center into studs. I wish I had bought this item prior to doing some renovations because I would have installed some blocking in the walls, but it is what it is. So, in closing, I installed a 2-shelf version that does look nice once installed. The instructions are basically useless. If using wall anchors, find better ones. Choose to install into studs if possible.

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Reviewed in the United States on March 1, 2023

Verified Purchase

Kaley L Nyberg

Alexandria, US

★★★★★ 3

This is incredibly difficult to get the holes lined up

We tried a few ways to install this. It was incredible difficult to get the holes lined up and the drywall screws were really poorly made- they went right through the wall. We were able to get 3/4 screws on each hole lined up. Better written instructions would have probably gone a long way.

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Reviewed in the United States on October 23, 2022

Verified Purchase

Michelle bullard

West Palm Beach, US

★★★★★ 5

Stable and easy to assemble

I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.

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Reviewed in the United States on February 15, 2023

Verified Purchase

Charles Clerici