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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));
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.
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.
Very nice indeed! Not test again, okay. He got here really fast. I haven't tried it yet, but it looks good.
Works as expected! Took me some time to get it to run, but now it works quite fine. What's also worth to be mentioned in my opinion: the sensor works by the CO2 deffusing into the measurement chamber(golden part) through the white membrane on the top, so if you want measurements with a quick response, you should make sure that there is a steady stream of the measurement media going over the membrane. Link to the Arduino Library I wrote for this sensor: https://github.com/Jan-NiklasB/MH-Z14A-Library Works as expected! Took a little while to run smoothly, but it's working now. What is also worth mentioning is that the Sensonsr works by diffusing the CO2 through the white membrane at the top of the measuring chamber (golden part). It is therefore advisable if you need a fast response time to run a steady current of the measuring medium over the membrane. (Fans etc.) Link to the Arduino-Lib I wrote for this sendor: https://github.com/Jan-NiklasB/MH-Z14A-Library
Spot on
thank you
works
Very nice module.