GAIA Design Internals
GAIA A12

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Here are a few design internals insights for the GAIA A12 monitoring stations:

  • Mechanical Design

    Gaia's external mechanical enclosure is specially designed, with a vent cap, which protects the sensors from direct wind and rain. The enclosure is made of UV-proof ABS plastic.


    GAIA A12 external mechanical design
  • Maintainability

    The GAIA station is very easy to be maintained - specifically, changing the internal sensor can be done by anyone - you just need a standard screwdriver.


    GAIA A12 internal design:
  • Reliability

    Gaia uses 3 redundant dust sensors: The reason for using 3 redundant sensors is that, when one sensor fails, it is possible to know which one.
    For stations with only two sensors, when a sensor fails, it is not possible to know which sensor is reporting correct data vs incorrect data.

  • Life Cycle

    The GAIA station uses a 25% duty cycle for dust sensors (active 90 seconds every 6 minutes). This makes it possible to operate the GAIA station for several years without the need for maintenance.

  • Data Quality

    For each sample interval (1 minute), GAIA provides the minimum, maximum, standard deviation, average and median for for interval. All this information is needed to extract reliable information about the sensor data quality.

  • Cost Effective

    Gaia station costs $200, and for this price, you get a 2x5 meters waterproof power cable and a power supply.


  • GAIA A12 Items included for $200 USD:

    Ordering and Inquiry

    Fill in the form below to get a quotation including the shipment cost.

    Let us know if you have any additional requirements or questions
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    Frequently Asked Questions:

    • Payment: It can be done using any regular credit card.
    • Discount: 10% discount when ordering 5 pieces, 20% when ordering 10 pieces or more.
    • DC Adapter: Products are shipped with localized power plug adaptors (USB power supply) for US, EU, AU and UK.

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    Back to the GAIA Air Quality Monitoring station page


    About the Air Quality and Pollution Measurement:

    About the Air Quality Levels

    AQI Air Pollution Level Health Implications Cautionary Statement (for PM2.5)
    0 - 50 Good Air quality is considered satisfactory, and air pollution poses little or no risk None
    51 -100 Moderate Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
    101-150 Unhealthy for Sensitive Groups Members of sensitive groups may experience health effects. The general public is not likely to be affected. Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
    151-200 Unhealthy Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
    201-300 Very Unhealthy Health warnings of emergency conditions. The entire population is more likely to be affected. Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
    300+ Hazardous Health alert: everyone may experience more serious health effects Everyone should avoid all outdoor exertion

    To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

    For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


    Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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