The sensor uses the principle of laser scattering. It means that the laser light on the particles in the air and making the scattering, while collecting scattered light at a particular angle, resulting in scattered light intensity with time curve. The principle of laser scattering is to achieve accurate measurement.
Specification
| Effective Range (PM2.5 standard) | 0~500 ug/m3 |
| Counting Efficiency | 50%@0.3um 98%@>=0.5um |
| Maximum Range (PM2.5 standard) | >=1000 ug/m3 |
| Resolution | 1 ug/m3 |
| Maximum Consistency Error (PM2.5 standard data) | +-10%@100~500ug/m3, +-10ug/m3@0~100ug/m3 |
| Standard Volume | 0.1 Litre (L) |
| Total Response Time | < =10 Second (s) |
| Active Current | < =100 mA |
| Standby Current | < =200 uA |
| Interface Level | L 2.7@3.3 V |
| Storage Temperature Range | -40~+80 C |
| Working Humidity Range | 0~99% |
| MTTF | > =3 Year |
| Target Gas | Air Quality |
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