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| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 4160-2 |
| Price | USD 3,650 (FOB) |
| Principle | Electrochemical Sensor |
| Measurement Range | 0–19.99 ppm |
| Extended Low-Range Mode | 0–500 ppb |
| Resolution | 0.01 ppm |
| Accuracy | ±2% Rd ±0.01 ppm |
| Flow Rate | 1.0 L/min |
| Dimensions | 178 × 102 × 225 mm |
| Weight | 2.0 kg |
| Power | Rechargeable Li-ion battery with real-time voltage monitoring |
| Certification | China NIM Type Approval (Certificate No. 2021F012), Evaluated by Chinese Center for Disease Control and Prevention – Institute of Environmental Health and Related Product Safety |
| Origin | Japan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | XP-308II |
| Detection Principle | Electrochemical Sensor |
| Measurement Range (Standard) | 0.00–3.00 ppm |
| Minimum Resolution | 0.01 ppm |
| Sampling Method | Integrated Micro-Pump (Active Draw) |
| Display | Dual-mode — Digital Numeric + Bar Graph Scale |
| Dimensions (W×H×D) | 175 × 140 × 86 mm |
| Weight | Approx. 2.5 kg |
| Power Supply | Rechargeable Battery or AC Adapter |
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