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| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | FE20K |
| Price | USD 580 (approx.) |
| pH Range | 0.00–14.00 |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| mV Range | ±1999 mV |
| mV Accuracy | ±1 mV |
| Temperature Range | 0–100 °C |
| Calibration Points | Up to 3-point |
| Temperature Compensation | Automatic or Manual |
| Endpoint Detection | Automatic or Manual |
| Buffer Recognition | Yes |
| Electrode Status Indicator | Yes |
| Slope Display | Yes |
| Reference Electrode Input | Yes |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Italy |
| Model | FE28 |
| Instrument Type | Benchtop |
| Parameter Types | pH and mV (single-channel) |
| pH Measurement Range | -2 to 16 |
| pH Resolution | 0.01 / 0.1 |
| pH Accuracy | ±0.01 |
| mV Measurement Range | 0 mV |
| mV Resolution | 1 mV |
| mV Accuracy | ±1 |
| Temperature Range | -5 °C to 105 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.3 °C |
| Data Storage Capacity | 200 measurements |
| Connectivity | RS232 and USB |
| Electrode Included | LE438 pH electrode |
| ISM Support | Not supported |
| Calibration Solution Compatibility | China-specific calibration buffers |
| Compliance | Designed for GLP-compliant routine lab use |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Instrument Type | Benchtop |
| Parameter Type | Dual (pH/mV) |
| Measurement Range | pH (0.00–14.00), mV (−1999 to +1999) |
| Resolution | 0.01 pH / 1 mV |
| Accuracy | ±0.01 pH ±1 digit |
| Temperature Compensation | Manual (0.0–60.0 °C) |
| Display | Segment LCD |
| Calibration | Auto-buffer recognition, 2-point calibration |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions & Weight | 300 × 220 × 90 mm, 1 kg |
| Compliance | Meets JJG 919–2008 (Chinese National Verification Regulation for pH Meters) |
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