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| Brand | BGI |
|---|---|
| Origin | USA |
| Model | deltaCal DC1 & tetraCal TC5 |
| Flow Range (deltaCal) | 1.5–19.5 L/min |
| Flow Range (tetraCal) | 0.1–30.0 L/min |
| Operating Temperature | −30 °C to +55 °C |
| Barometric Pressure Range | 400–800 mmHg (534–1066 hPa) |
| Temperature Measurement Range | −40 °C to +55 °C |
| Power | 4×AA batteries (20 hr) or universal 120/240 VAC adapter |
| Certifications | NIST-traceable calibration, ISO 9001 certified, compliant with U.S. EPA PM2.5/PM10 field verification requirements |
| Brand | BGI |
|---|---|
| Origin | USA |
| Model | PQ167HA |
| Operating Altitude | up to 15,000 ft (4,572 m) |
| Flow Rate | 5.0 L/min (±2% accuracy) |
| Sampling Duration | 24 h on internal DC battery |
| Particle Size Cutpoints | TSP, PM10, PM4.0, PM2.5, PM1.0 |
| Filter Format | 47 mm diameter membrane |
| Compliance | U.S. EPA Federal Reference Method (FRM) for PM2.5 |
| Sampling Head | BGI miniPM with integrated water separator |
| Power Options | Internal rechargeable DC battery + AC adapter |
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