| Model Number | CH-PV28B |
| Product name | PM2.5 Air quality detector |
| PM2.5 Measure Range | 0~1000μg/m³ |
| PM2.5 over limit alarm value | 25 μ G/m ³³ |
| Accuracy | ±10μg/m³(0~100μg/m³) ±10%(100~500μg/m³) |
| Temp Measure Range | 0 ~ 50℃ |
| Size | 70*84*35 mm |
| Display | LED |
| Battery capacity | 800mAh |
| Power supply | USB Type-C 5V = 2A |
| G.W | 187g |






