Air Quality Sutherland Shire
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Our Technology
PurpleAir sensors are an "Internet of things" (IOT) air quality sensor or particulate sensor consisting of a network of elements
Laser Particle Counter:
PurpleAir uses PMS5003 and PMS1003 laser particle counters. These sensors count suspended particles in sizes of 0.3, 0.5, 1.0, 2.5, 5.0, and 10um. These particle counts are processed by the sensor using a complex algorithm to calculate the PM1.0, PM2.5, and PM10 mass concentration in ug/m3. PMS5003 and PMS1003 sensors come factory calibrated.
Before deploying any devices, we verify that they are giving out readings that are consistent from sensor to sensor during tests in a smoke chamber. So far, all sensors we tested have produced consistent output.
ESP8266 and Arduino:
PurpleAir sensors use an ESP8266 chip to talk to the particle counter and provide all functionality, including connecting to a WiFi network and uploading data to the cloud. This ESP8266 chip runs code developed using Arduino. PurpleAir firmware has remote update features meaning we can modify the software and the device will download the new version and update itself. Each device checks for updates from time to time.
PurpleAir sensors are an "Internet of things" (IOT) air quality sensor or particulate sensor consisting of a network of elements
Laser Particle Counter:
PurpleAir uses PMS5003 and PMS1003 laser particle counters. These sensors count suspended particles in sizes of 0.3, 0.5, 1.0, 2.5, 5.0, and 10um. These particle counts are processed by the sensor using a complex algorithm to calculate the PM1.0, PM2.5, and PM10 mass concentration in ug/m3. PMS5003 and PMS1003 sensors come factory calibrated.
Before deploying any devices, we verify that they are giving out readings that are consistent from sensor to sensor during tests in a smoke chamber. So far, all sensors we tested have produced consistent output.
ESP8266 and Arduino:
PurpleAir sensors use an ESP8266 chip to talk to the particle counter and provide all functionality, including connecting to a WiFi network and uploading data to the cloud. This ESP8266 chip runs code developed using Arduino. PurpleAir firmware has remote update features meaning we can modify the software and the device will download the new version and update itself. Each device checks for updates from time to time.