The Plantower PMS3003 Air Quality Sensor experiment
Real-time Air Quality readings from the PMS3003

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For a complete list of all the Air Quality Sensors test on the World Air Quality Index project, check our sensor overview page.

The PMS 3003 Sensor

The PMS 3003 Sensor is the third generation evolution of the PMS1003 developped by plantower (chinese name: 攀藤 (pānténg).

Specifications

This is the specification for the PMS3003. One should not consider all those values for granted as there is quite often a big difference between what is said to be possible and what is actually possible (and this is why we are setting up all our experiments).
  • Parameters :Index  (Unit )
  • Measuring range :0.3 to 1.0 ; 1.0 to 2.5 ; 2.5 to 10  (mm)
  • Counting efficiency :50%@0.3um 98% @> = 0.5 um 
  • Response time :≤ 10  sec
  • DC supply voltage :5 V
  • Operating current :120  mA
  • Standby Current :≤ 200  µA
  • Data interface level :L <0.8 @ 3.3 H> 2.7@3.3  V
  • Operating temperature range :-20 ~ + 50  °C
  • Operating humidity range :0 to 99% 
  • MTBF :≥ 3  Year
  • Size :65 × 42 × 23  mm

Inside look at the sensor

Compared to the PMS1003, the PMS3003 is just a mechanical size reduction - the electronic is the same. In the former mechanisms, there used to be a mechanical air chamber, which is now removed a replaced by a simple hole over the diode. This is probably because their attempt to imitate Dylos' pressure drop patent proved to be inefficient in the first generation.
The electronic components are the same, at least for the main CPU, a Cypress CY8C4245. That's a bit disapointing since a higher frequency CPU/ADC could help for the advanced processing so much needed for better understand the air quality. Hopefully this is something we will find in the 7th generation sensor, which is comming quite soon. Stay tunned!
Playing arround with this sensor is quite simple as it exports a serial interface. The pin-out in the following:
  • PIN1  :VCC :Power Supply (5V).
  • PIN2  :GND :Ground.
  • PIN3  :SET :Standby mode (when 0), operating mode (when 1)
  • PIN4  :RXD :Serial receive / TTL level @ 3.3V.
  • PIN5  :TXD :Serial transmit / TTL level @ 3.3V.
  • PIN6  :RESET :Module reset / TTL level @ 3.3V.
  • PIN7,8 :NC :Not connected.

Real-time data

There are two co-located PMS3003 sensors (both are outside). First PMS 3003 outdoor readings are:
  • PM1 count: -,
  • PM2.5 count: -,
  • PM10 count: -,
  • updated on - - (China time).
Second PMS 3003 outdoor readings are:
  • PM1 count: -,
  • PM2.5 count: -,
  • PM10 count: -,
  • updated on - - (China time).

Time series graphs




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For the list of all air quality sensors, check the Sensor Overview page

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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary 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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