Weather Station Hardware > Air Quality Sensors
I'm designing a new air quality monitor!
yan:
Hey all,
My name is Yan, I am a mechanical engineer, and I am new to the Wxforum.
I have been working on an open-source air quality monitor for the Baltimore Open Air Project https://github.com/baltimoreopenair, a community based air quality monitoring network. I am now working on a new device to make air quality monitoring less expensive and more available for everyone.
I would like your help to decide which features are most important, for example, measured species, connectivity, and access to the data.
Right now our stations measure PM, T/Rh, Ozone, Nitrogen Dioxide, Hydrogen Sulfide and Sulfur Dioxide. I have put together a website https://forcasters.landinglion.com/mistralbytroposphere/ that shows the specs and design of our new station and optionally allows you to reserve an early customizable outdoor station as well as our new indoor model.
Please put your suggestions in the comments, It will be a big help to us in our ongoing design efforts.
Happy Air Forecasting!
Yan
Bushman:
Looks awesome, but over $600 USD with an indoor unit? Ouch.
yan:
--- Quote from: Bushman on June 26, 2018, 04:19:54 PM ---Looks awesome, but over $600 USD with an indoor unit? Ouch.
--- End quote ---
Hey Bushman, I hear you. This is mainly due to the fact that good gas sensors are fairly expensive and that for small production devices, the cost of FCC or CE certification is very high. I am also making most of the production in the US to be able to calibrate each device.
If you don’t live downwind from a power plant, a factory, a water treatment plant, a volcano or a swamp you probably don’t need to have H2S and SO2 in the outdoor device, except if you want to know on what day your neighbor is emptying his septic tank. PM, NO2 and O3 are enough in most cases. Assuming that, you end up with a general device at $245 which tells you about T/rh, PM (1, 2.5 and 10), O3 and NO2.
What are your thoughts?
johnd:
I'd be most interested in a sensor with an SDI-12 interface and minimal power requirement (eg 1mA @3v or something similar) so that it could in principle hook directly into other data handling platforms. I suspect that this might well appeal to users who already have a weather station (as well as others too of course) so Temp/RH might be irrelevant for some users, but presumably cheap to add so why not.
mcrossley:
John, I think they use the T/H internally to apply calibrations to the sensor outputs, so required anyway.
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