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SelfBuilt is on holiday from December 20 - January 4, 2017. Any orders received during this time will be processed when we get back on January 4. Thanks.
This sensor detects the concentration of particulate matter in the air. The sensor can differentiate between particle sizes >1um and >2.5um. This data is useful for monitoring air quality. Particles 10um and smaller are suspected to have the most impact on human health.
Example code - https://github.com/selfbuilt/ppd42ns-example-code