Research Article
Evaluation of Low-Cost Sensors for Ambient PM2.5 Monitoring
Table 1
Characteristic of PM sensors used in the research.
| | Sensor model | SDS011 | ZH03A | PMS7003 | OPC-N2 |
| | Manufacturer | Nova Fitness | Winsen | Plantower | Alphasense | | Approximate price ($) | 20 | 20 | 20 | 500 | | Dimensions (mm) | 71 × 70 × 23 | 50 × 32.4 × 21 | 48 × 37 × 12 | 75 × 63.5 × 60 | | Approximate weight (g) | 50 | 30 | 30 | 105 | | Power supply voltage (V) | 5 | 4.5–5.5 | 4.5–5.5 | 4.8–5.2 | | Working current (mA) | 220 | 70–140 | ≤100 | 175 | | Detectable size range (μm) | 0.3–10 | 0.3–10 | 0.3–10 | 0.38–17 | | Size bins | Not available | Not available | 6 size bins | 16 size bins | | Estimated PMx concentration | PM2.5, PM10 | PM1, PM2.5, and PM10 | PM1, PM2.5, and PM10 | PM1, PM2.5, and PM10 | | Concentration range (μg/m3) | 0–999.9 | 0–1000 (for PM2.5) | Effective range: 0–500 Maximum range: above 1000 (for PM2.5) | 0.01–1500·103 (for PM10) |
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