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| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | E-201F |
| Electrode Type | Single-Unit Combination |
| Application | In Vivo & Routine Aqueous Solutions |
| Electrode Dimensions | 12 mm diameter × 120 mm total length |
| Inter-electrode Spacing | 10 mm |
| Electrode Configuration | Integrated Ag/AgCl Reference + Glass pH-Sensing Element |
| Housing Material | Polycarbonate |
| Junction Type | Fibrous Liquid Junction |
| Connector | BNC (Q9) |
| Temperature Range | 5–60 °C |
| pH Range | 0–14 |
| Refillable Reference Chamber | Yes |
| Protective Foot | Fixed, Non-removable |
| Included Accessories | Electrode Storage Bottle + KCl Fill Powder Kit |
| Brand | Hach |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China-manufactured) |
| Model | HC9420 |
| Instrument Type | Single-Port |
| Application Scope | In-situ Process Monitoring (Bioreactors & Fermenters) |
| Electrode Configuration | Composite Glass + Reference Electrode |
| Electrode Count | 2 (Integrated pH-Sensing and Reference Elements) |
| Electrode Spacing | ~10 mm |
| Electrode Diameter | 12 mm |
| Available Lengths | 120 mm / 225 mm / 325 mm / 425 mm (Customizable Stem Length) |
| pH Range | 0–14 |
| Response Time (t₉₀) | <60 s |
| Operating Temperature | 0–130 °C |
| Max. Pressure Rating | 6 bar (gauge) |
| Junction Type | Dual-Liquid-Junction with Ceramic Frit |
| Temperature Sensor | Integrated PT1000 RTD |
| Membrane Material | High-Temperature Borosilicate Glass |
| Gel Electrolyte | Pre-pressurized Polymer Gel |
| Sterilization Compatibility | Validated for CIP (Clean-in-Place) and SIP (Steam-in-Place) per ISO 13485 & ASME BPE guidelines |
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