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| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | IFC-2 |
| Price | USD 690 (FOB Beijing) |
| Flow Rate Range | 5–25 L/min (continuously adjustable) |
| Timer Range | 0–99 minutes |
| Power Supply | AC 220 V / DC rechargeable battery (≥3 h continuous operation) |
| Dimensions | 210 × 130 × 90 mm |
| Explosion Protection | Intrinsic Safety “ib I” per GB 3836.4–2021 / IEC 60079-11 |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | DFC-3BT |
| Price Range | USD 700–1,400 |
| Sampling Flow Rate | 5–30 L/min |
| Flow Accuracy | ≤ ±5% |
| Timing Accuracy | ≤ ±0.1% |
| Maximum Negative Pressure | ≥15,000 Pa |
| Charging Current | 300 mA (standard) |
| Power Supply | 10 V DC / 220 V AC, 50 Hz |
| Operating Temperature | −25°C to +45°C |
| Sound Pressure Level | ≤60 dB(A) |
| Relative Humidity | ≤85% RH |
| Dimensions | 200 × 160 × 140 mm |
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