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Monitor air pollution cheaply and accurately with this matchbox-sized PMS7003 particulate matter (PM) sensor from Plantower! It senses particulates of various sizes (PM1, PM2.5, PM10) from sources like smoke, dust, pollen, metal and organic particles and more.
The sensor has a small fan that sucks air through the sensor and past a laser that can detect both the number (and hence concentration) and size of particles in the surrounding air.
The sensor comes with an adapter board, allowing you to hook it up to a microcontroller with standard jumper wires using VCC/GND/RX/TX. It also comes with a Molex Picoblade cable for breaking out the full six pins i.e. including SET and RST.
Here's an example of this sensor hooked up to a Raspberry Pi Zero using just VCC/GND/RX/TX.
We stock three different models of particulate sensor from Plantronics, so the first question you might have is "What's the difference between the PMS5003, the PMS7003 and the PMSA003?".
There's a slight difference in price between the models, and from a technical perspective, here are the differences from Plantower's website - there's not a lot in it - physical size being the main difference along with some slight differences in current usage:
| Parameter | PMS5003 | PMS7003 | PMSA003 | Unit |
| Particle Range of measurement | 0.3~1.0; 1.0~2.5; 2.5~10 | 0.3~1.0; 1.0~2.5; 2.5~10 | 0.3~1.0; 1.0~2.5; 2.5~10 | μm |
| Particle Counting Efficiency | 50%@0.3µm 98%@≥0.5µm |
50%@0.3µm 98%@≥0.5µm |
50%@0.3µm 98%@≥0.5µm |
|
|
Particle Effective Range (PM2.5 standard) |
0~500 | 0~500 | 0~500 | μg/m³ |
|
Particle Maximum Range （PM2.5 standard）* |
≥1000 | ≥1000 | ≥1000 | μg/m³ |
| Particle Resolution | 1 | 1 | 1 | μg/m³ |
|
Particle Maximum Consistency Error (PM2.5 standard data) |
±10%@100~500µg/m³ ±10µg/m3@0～100µg/m³ |
±10%@100~500μg/m³ ±10μg/m³@0~100μg/m³ |
±10%@100~500μg/m³ ±10μg/m³@0~100μg/m³ |
|
| Particle Standard Volume | 0.1 | 0.1 | 0.1 | Litre（L） |
| Single Response Time | <1 | <1 | <1 | Second（s） |
| Total Response Time | <10 | <10 | <10 | Second（s） |
| DC Power Supply | Typ: 5.0 Min: 4.5 Max :5.5 |
Typ: 5.0 Min: 4.5 Max :5.5 |
Typ: 5.0 Min: 4.5 Max :5.5 |
Volt（V） |
| Active Current | ≤100 | ≤100 | ≤100 | mA |
| Standby Current | ≤10 | ≤10 | ≤2 | mA |
| Interface Level | L<0.8 @3.3 H>2.7@3.3 | L<0.8 @3.3 H>2.7@3.3 | L<0.8 @3.3 H>2.7@3.3 | Volt（V） |
| Working Temperature Range | -10~+60 | -10~+60 | -10~+60 | ℃ |
| Working Humidity Range | 0~99 | 0~99 | 0~99 | |
| Storage Temperature Range | -40~+80 | -40~+80 | -40~+80 | ℃ |
| MTTF | ≥3 | ≥3 | ≥3 | Year |
| Physical Size | 50mm×38mm×21mm | 48mm×37mm×12mm | 38mm×35mm×12mm | mm |
The sensors reduced in size each release, however, as per the table above, technically there's very little difference between them. In order of old to new:
Note: There may be a blue protective film that covers the metal casing of the sensor, you can peel this off before use if so.
Here are some projects and resources we found online using this PMS7003 sensor:
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