Adafruit SCD-41 - True CO2 Temperature and Humidity Sensor - STEMMA QT / Qwiic

Adafruit SCD-41 - True CO2 Temperature and Humidity Sensor - STEMMA QT / Qwiic

Marsoni

M251S

$885.50

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

Adafruit SCD-41 - True CO2 Temperature and Humidity Sensor - STEMMA QT / QwiicThe SCD 41 is a photoacoustic "true" CO2 sensor designed to measure the CO2 concentration (in parts per million, PPM) in ambient air. Unlike sensors like the SGP30, which approximate CO2 levels based on VOC gas concentration, the SCD 41 directly measures CO2, making it highly accurate but also larger and more expensive. It is ideal for environmental sensing, scientific experiments, and air quality studies. This sensor uses a different measurement

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We have a poodle mix that easily gets bored with most toys, including the other interactive bouncy balls. This toy seems to keep him busy though and so far he has not destroyed it or grown bored of it. The only problem we have is keeping it charged because he seems to wear it out but it is not a problem to recharge it with the USB cable that is included. It is a little tricky screwing the toy back together after charging the battery but I am getting the hang of it. Once it is set to one of the play modes the ropes on top (that you need to put on) will start spinning back and forth and the toy gyrates around seeming like it is alive to our dog. The loves playing with it in all of the modes but I think he likes that faster modes better. It comes with an extra rope which was good because our raptor dog already ripped the first one apart. The price on this toy is relatively low compared to tother toys to I highly recommend this for anyone that has a dog who is bored with the typical play toys.

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Reviewed in the United States on February 22, 2026

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S. Weir

Lexington, US

★★★★★ 5

Great entertainment for kittens too!

Color: Blue

My kittens love this toy and play with it more than my dog. I bought it on sale. I am impressed with the quality, ease of use, and I rarely need to charge it.

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Reviewed in the United States on June 10, 2026

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Sue Elliott

Houston, US

★★★★★ 1

Do not buy… false advertising does not move!!

Color: Red

Terrible!!! No directions & no movement at all!!! Button?? Push…. Sure there is no button No way to charge… Scam

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Reviewed in the United States on May 29, 2026

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Carolyn frog1

Lake Worth, US

★★★★★ 5

Great toy for dogs

Color: Red

My dog loves this toy, it was well worth the money. And I’m glad it charges with USB and not batteries.

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Reviewed in the United States on June 8, 2026

Blank

Grantham, US

★★★★★ 4

Finally, a Toy That Out-Works My Dog!

Color: Blue

My dog gets bored easily, and this automatic moving ball has been a hilarious and effective distraction. It bounces and rotates on its own, which triggers her hunting instinct immediately. The rope chew attached to the side is a nice touch for some added teeth cleaning while she plays. It’s sturdy enough for a medium-sized dog and the fact that it's waterproof means I don't have to worry when she eventually drops it in the water bowl or takes it out into the melting snow. The *only* issue I have is it starts before I can even screw it back together. It wants to jump out of my hands before I'm ready.

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Reviewed in the United States on February 19, 2026