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| Brand | Guo Ruili Heng |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GR-1213 |
| Instrument Type | Portable |
| Sampling Flow Rate (No-load) | 12 L/min |
| Maximum Negative Pressure | −80 kPa |
| Operating Temperature Range | −20 to +55 °C |
| Operating Humidity Range | 0–95 %RH |
| Battery | 24 V / 2600 mAh |
| Continuous Operation Time | >4 h |
| Dimensions (H×W×L) | 210 × 140 × 260 mm |
| Weight | ~4 kg |
| Power Consumption | <15 W |
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