Air Sensors
air-sensors

## Choosing Sensors Often the first step is to look for a sensor for what you're hoping to measure. In the community posts below, we're collecting info on different kinds of air quality sensors, and their: * cost * sensitivity/accuracy * links and documentation Can you afford a sensor? Can it detect what you're looking for? Where can you learn more about it? ### Posts about choosing and evaluating an air sensor [notes:grid:air-sensor-eval] ### Expected ranges and useful detection limits for pollutants of interest This [table](https://www.epa.gov/sites/production/files/2016-06/documents/air_sensors_webinar_slides_06-29-16.pdf) from an EPA [Air Quality Monitoring and Community Science webinar](https://www.epa.gov/sites/production/files/2016-06/documents/air_sensors_webinar_slides_06-29-16.pdf) lists the six criteria air pollutants and a couple additional pollutants, with background levels you might see in the environment in the “Range to Expect” column and useful detection limits for sensors. **** ## Wikis about air sensors [wikis:air-sensors] ## Air sensor projects Public Lab pages and posts tagged `air-sensor-projects` will appear here [nodes:air-sensor-projects] ## Questions [questions:air-sensors] ## Further reading and resources + Environmental consultant Tim Dye’s “[4 questions to ask before buying an air quality sensor](http://tdenviro.com/wp-content/uploads/2017/09/4-questions-when-buying-air-sensors.pdf)” neatly summarizes what to consider when choosing an air sensor. + [Snuffle.org](http://www.snuffle.org/): lots of information on low-cost sensors for various air pollutants. + [Air Quality Sensor Performance Evaluation Center (AQ-SPEC)](http://www.aqmd.gov/aq-spec/evaluations): from the South Coast Air Quality Management District, this program tests and evaluates air sensors “in the field, under ambient conditions, and in the laboratory under controlled environmental conditions.” + [Air Sensor Toolbox](https://www.epa.gov/air-sensor-toolbox): from the US Environmental Protection Agency, this toolbox includes guidance on how to use air sensors and their data, plus information on sensor performance and evaluation results. ...


Author Comment Last activity Moderation
ethaniel "I used your manual to clean my Purpleair PMS5003 sensor. Ended up messing both of them up (sensor values didn't match by a large margin) - it's alm..." | Read more » about 2 years ago
malikgui "amazon ppc campaign " | Read more » over 2 years ago
AnemometricalTwoStep "+1 One of the channels in my PurpleAir started reporting a value of 0 constantly. I suspect I’m going to have to take it apart and replace or clea..." | Read more » over 2 years ago
warren "Just noting also a big round up of notes on humidity and fog with optical sensors here: https://publiclab.org/questions/sarasage/08-10-2021/is-the..." | Read more » over 2 years ago
Ag8n "For the most part, my experience was on the manufacturing end. And the answer would be very similar, but stated quite differently " the cost bene..." | Read more » over 2 years ago
denissebn_06 "This might be some useful information for you @sarage Check out the report linked " Making most of monitoring". " | Read more » over 2 years ago
bhamster "@LESBreathe, this post and the report linked in it might be helpful to check out " | Read more » over 2 years ago
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cfastie "The Plantower sensors require 4.5 to 5.5 volts. They work well with 5 volt Arduinos. They might not work properly with ESP8266 or ESP32 boards beca..." | Read more » almost 3 years ago
bhamster "Hi @lilymccraith, nice to see you here! Great question about alternative parts for the Simple Air Sensor. I'm not sure of the answer myself, but w..." | Read more » almost 3 years ago
lilymccraith "Can you use an ESP32 board instead of an Arduino nano? " | Read more » almost 3 years ago
linktofun88 "Thank you for this post! " | Read more » about 3 years ago
fayyazids6 "https://publiclab.org/notes/bhamster/11-23-2020/what-s-in-your-airea-public-lab-virtual-event-on-air-quality-monitoring?_=1613205424 " | Read more » about 3 years ago
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