I've bought more of these sensors by now, it's excellent. What makes this sensor excellent that it measures directly the CO2 level unlike the ones that guess it based on air quality (cheaper ones _guess_ CO2 level based on various particle levels). So if you want a good sensor go for this or other NDIR variants and don't settle for cheaper ones that don't directly measure CO2 level.

I've bought more of these sensors by now, it's excellent. What makes this sensor excellent that it measures directly the CO2 level unlike the ones that guess it based on air quality (cheaper ones _guess_ CO2 level based on various particle levels). So if you want a good sensor go for this or other NDIR variants and don't settle for cheaper ones that don't directly measure CO2 level.

I've bought more of these sensors by now, it's excellent. What makes this sensor excellent that it measures directly the CO2 level unlike the ones that guess it based on air quality (cheaper ones _guess_ CO2 level based on various particle levels). So if you want a good sensor go for this or other NDIR variants and don't settle for cheaper ones that don't directly measure CO2 level.

For beginners or arduino examples like eucation or home air analyze can use freely, but for profesional devices like medical air-clear or weathers statiin i not recomending to buy this sensor. Or use double for get more precession value. Software for testing this and ssome other sensor we gift to banggood, and you can download from this link: http://www.mkey-support.com/ip/banggood/iSersorAPP[v1.0].zip p.s. stabilisation time = 2 minuts! (after run, call procedure delay_ms(2000 * 60));

For beginners or arduino examples like eucation or home air analyze can use freely, but for profesional devices like medical air-clear or weathers statiin i not recomending to buy this sensor. Or use double for get more precession value. Software for testing this and ssome other sensor we gift to banggood, and you can download from this link: http://www.mkey-support.com/ip/banggood/iSersorAPP[v1.0].zip p.s. stabilisation time = 2 minuts! (after run, call procedure delay_ms(2000 * 60));

For beginners or arduino examples like eucation or home air analyze can use freely, but for profesional devices like medical air-clear or weathers statiin i not recomending to buy this sensor. Or use double for get more precession value. Software for testing this and ssome other sensor we gift to banggood, and you can download from this link: http://www.mkey-support.com/ip/banggood/iSersorAPP[v1.0].zip p.s. stabilisation time = 2 minuts! (after run, call procedure delay_ms(2000 * 60));

An excellent CO2 sensor for a low price In conjunction with an Arduino board one can realize a fine data logger

An excellent CO2 sensor for a low price In conjunction with an Arduino board one can realize a fine data logger

An excellent CO2 sensor for a low price In conjunction with an Arduino board one can realize a fine data logger

took a bit, due to wrong addresses etc but in the end it is depressing.

hat ein bisschen gedauert, wegen verkehrten Adressen etc aber letztlich doch beklommen.

took a bit, due to wrong addresses etc but in the end it is depressing.

Very nice indeed! Not test again, okay. He got here really fast. I haven't tried it yet, but it looks good.

Very fast shipping! Not tested yet, looks OK. Nagyon gyorsan ideért, még nem próbáltam, de jónak néz ki.

Very nice indeed! Not test again, okay. He got here really fast. I haven't tried it yet, but it looks good.

Very nice module.

Very nice module.

Very nice module.

Fast delivery. Absolute satisfaction.

Fast delivery. Absolute satisfaction.

Fast delivery. Absolute satisfaction.

God product, fast delivery form UK. I had to pay VAT.

God product, fast delivery form UK. I had to pay VAT.

God product, fast delivery form UK. I had to pay VAT.

Упакован хорошо, в комплекте есть кабель. Кроме разъема ещё есть и отверстия под пайку или под пины.

Упакован хорошо, в комплекте есть кабель. Кроме разъема ещё есть и отверстия под пайку или под пины.

Упакован хорошо, в комплекте есть кабель. Кроме разъема ещё есть и отверстия под пайку или под пины.

Well produced product with a good price, delivered as promised.

Well produced product with a good price, delivered as promised.

Well produced product with a good price, delivered as promised.