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Model: CIS 7-in-1 Air Quality Monitor, Indoor Humidity Monitor, Temperature, CO2, TVOC, HCHO, Time, Date Display Desktop Air Quality Tester, Air Quality Meters for Home Office Hotel Restaurant School
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does this actually measure co2, hcho, and tvoc or does it cheat like ecobee does and infer them based upon a single measured particle count and then say "meh this sounds good enough" for the others.
Arent these junk with pretty much fake sensors? They were $13ish last year on temmuu and i got one and it was putting out fake numbers. I assume these are similar quality since its amazon in the US.
There are fake/junk sensors in this type of product all the time. There's a reason why real ones cost SO MUCH MORE....because they have actual sensors for each of those. Many of these have a single particulate sensor...and "guesstimate" what the other values "should be". Most people don't have TVOCs on hand to calibrate it, so...go ahead and prove it's a fake. The company will wait.
I use Airthings 2930 Wave Plus - Radon & Air Quality Monitor, Battery Powered (CO2, VOC, Humidity, Temp, Pressure)
Its a legitimate accurate monitor but its not cheap https://www.amazon.com/Airthings-...r=1-3&th=1
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https://slickdeals.net/f/18835504-44-99-amazon-smart-air-quality-monitor-at-amazon?src=SDSe
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I'll take a look and see if it does real CO2 or fake one after I get it, I didn't find anyone disassemble it yet
Its a legitimate accurate monitor but its not cheap
https://www.amazon.com/Airthings-...r=1-3&th=1
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