sensor.community is probably the larger CO2 map, as it currently has 12,236 active sensors compared to Airgradient's 500 sensors [1]. They also offer instructions for the construction of sensor kits or the purchase of pre-assembled units. The CCC has an interesting presentation about its mission and approach [2].
How do you differentiate yourself from sensor.community?<p>/edit: My mistake: sensor.community focuses on PM2.5 µg/m³ while you provide CO2 information. Please excuse my mistake.<p>[1] <a href="https://sensor.community/en/" rel="nofollow">https://sensor.community/en/</a><p>[2] <a href="https://media.ccc.de/v/mch2022-213-sensor-community-global-open-environmental-data-platform" rel="nofollow">https://media.ccc.de/v/mch2022-213-sensor-community-global-o...</a>
Achim from AirGradient here.<p>We are super thrilled about launching this and the examples that I describe in the blog post are quite encouraging that we can get some really useful data out of it.<p>Happy to answer any questions.
Link to the actual map: <a href="https://www.airgradient.com/map/" rel="nofollow">https://www.airgradient.com/map/</a>
Maybe I'm missing this info somewhere, but would like to better understand the accuracy of the placement of the markers on the map. For example there's a 702 ppm marker in Moorestown Township NJ. Is this the exact location of one sensor, and would this then mean that some entity in Moorestown NJ is producing tons of co2?
I have an „older“ model of the outdoor module without the CO2 measurement (from June '23, the one with two PM2 modules) is it possible to upgrade it easily? I think mine also has a slot for a TVOC/NOx sensor but as far as I remember the sensor available on the store was not compatible due to size. Has that changed?
I'm very interested in getting a sensor and taking part - but is there any information on optimum mounting position? For example, if I live in a terraced house in London with a reasonably large back garden, shoudl I be mounting on an exterior house wall? Bottom of the garden, or doesn't really matter?