ahaucnx

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301.
The Hidden Costs of Air Quality Monitoring(airgradient.com)
2 points by ahaucnx 4y ago|0 comments
302.
by ahaucnx 4y ago
Thanks for ordering our air quality monitoring kit! We use the same industry grade sensor modules that are normally in much more expensive commercial monitors. So the kit will give you very good accuracy.
303.
by ahaucnx 4y ago
No experience with the CSS811 sensor but the Sensirion TVOC sensors definitely react very quickly to chemicals in the room.
304.
by ahaucnx 4y ago
We usually use the SenseAir S8 NDIR sensors that have a very good quality but also have a couple of MH-Z19 sensors in monitors that run since a couple of years without issues. We ran a comparison between the two and the S8 and MH-Z19 pretty
305.
by ahaucnx 4y ago
Author here. We do only recommend TVOC sensors to detect spikes but not for any specific concentration measurements. For spikes, TVOC has some use cases, e.g. detecting aggressive cleaning chemicals or leaking chemicals, e.g. in an art clas
306.
by ahaucnx 4y ago
We mostly use the Sensirion SHT temperature and humidity sensors that are quite accurate.
307.
Open Source Air Outdoor Air Quality Monitor(airgradient.com)
2 points by ahaucnx 4y ago|0 comments
308.
by ahaucnx 4y ago
We at AirGradient maintain popular indoor and outdoor open source air quality monitoring projects [1] and gained quite a lot of experience on air quality measurement. The hard part of these projects is not connecting electronic modules and
309.
by ahaucnx 4y ago
Yes, we do see so many positive contributions from the community - not only on the technical side but also for example environmental justice organisations that build workshop material for students on top of the kit. So we want to make sure
310.
Licensing and Monetization of Our Open Air Quality Monitors(airgradient.com)
14 points by ahaucnx 4y ago|3 comments
311.
by ahaucnx 4y ago
For a DIY project like this our open hardware air quality monitor might be a good fit: https://www.airgradient.com/open-airgradient/outdoor/
312.
by ahaucnx 4y ago
CO2 should be very similar because we also use a Senseair CO2 sensor module like Aranet but with the AirGradient you can also measure PM and optionally TVOCs.
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by ahaucnx 4y ago
Yes. We ship worldwide.
314.
by ahaucnx 4y ago
Unlike our kits, the AirGradient ONE targets commercial customers with large and sometimes complex requirements so the price varies depending on this. But to give you an estimate it is somewhere between USD 200-300.
315.
by ahaucnx 4y ago
Awair uses much better sensors than the Ikea and the accuracy should be quite similar to the AirGradient.
316.
by ahaucnx 4y ago
I have extensively tested the previous model and it was a bit of a mixed result with the strongest selling point the price being really affordable. You can see my review and test result on our blog [1]. One of the biggest negative points th
317.
by ahaucnx 4y ago
I think pretty much all indoor air quality monitors with NDIR sensors have by default an automatic baseline calibration. Our kicks in every 7 days. So you should somehow reach ambient CO2 levels once a week to have it properly calibrated.
318.
by ahaucnx 4y ago
Yes we also used thermal cameras for leak detection. Quite effective.
319.
by ahaucnx 4y ago
It really depends on the outside pollution levels. In our experience indoor purification reduction with air purifiers correlate with outdoor pollution levels. So if it's really bad outside opening the windows just a little bit will alr
320.
by ahaucnx 4y ago
Not sure if you are sarcastic or not but the place I live has at times air quality classified as "Hazardous" and then hospitals are full of people having problems to breathe. If you are concerned about the zero pm 2.5 environment,
321.
by ahaucnx 4y ago
No, but the Gerber files are available on our instructions page. So far people that were interested in the combination of enclosure and pcb or the whole kit.
322.
by ahaucnx 4y ago
Yes correct. The CO2 increases by humans and air purifiers do not remove CO2 or bring in fresh air. To have the air purifier work effectively you need to keep your windows and doors closed.
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by ahaucnx 4y ago
Yes but it was a very customized solution which we also used to test and improve our air quality monitors that we develop.
324.
by ahaucnx 4y ago
There was quite some work involved because the house was originally very leaky and for this system to work it needs a very good sealed home. So I spent quite some time and money to close the leaks. It probably cost me a few thousand USD to
325.
by ahaucnx 4y ago
I am living in an area with periodic very high air pollution. So opening the windows to bring CO2 down will bring in fine dust pollution. I retrofitted my house with a demand controlled fresh air ventilation system that takes outside air ru
326.
by ahaucnx 4y ago
We maintain a popular open hardware air quality monitor that also uses a Senseair CO2 Sensor [1]. This gives you a lot of flexibility on how to use the data. The pre-soldered version is easy to build and also includes a PM sensor. [1] htt
327.
by ahaucnx 4y ago
Thanks for pointing this out. It seems we linked it to the wrong form (we have one internal one when we actually ship the kits)! Will fix this immediately.
328.
by ahaucnx 4y ago
You might have already gotten the new kit. Can you please contact us at https://www.airgradient.com/support/ and let us know your order number. It should be easy to fix.
329.
by ahaucnx 4y ago
Please give feedback on the instructions so that we can improve them. You can also message us through the support form. If the text is upside down, you flashed from the wrong build instructions. For the PRO Kit (OLED bottom right) use [1] f
330.
by ahaucnx 4y ago
I think you should be able to just pay with credit card. If you have problems please contact us through the support form.

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