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| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | DDS-307A |
| Price | USD 230 (FOB Shanghai) |
| Accuracy Class | 1.0 |
| Conductivity Range | 0–1.999 μS/cm, 2.0–19.99 μS/cm, 20.0–199.9 μS/cm, 200–1999 μS/cm, 2.0–19.99 mS/cm, 20.0–199.9 mS/cm |
| Temperature Range | –5 to 105 °C |
| Conductivity Accuracy | ±1.0% FS |
| Temperature Accuracy | ±0.5 °C |
| Temp. Compensation | 0–100 °C, Coefficient 2.0%/°C |
| Electrode Constants Supported | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Display | Backlit LCD, Multi-parameter |
| Auto Functions | Auto-ranging, Auto-calibration, Auto-temperature compensation |
| Measurement Modes | Conductivity, Resistivity, TDS, Temperature |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDSJ-308A |
| Detection Parameters | Single-parameter (Conductivity/TDS/Salinity/Temperature) |
| Form Factor | Benchtop |
| Conductivity Range | 0.000 µS/cm to 199.9 mS/cm |
| TDS Range | 0.000 mg/L to 99.9 g/L |
| Salinity Range | (0.00–8.00)% |
| Temperature Range | (−5.0 to 105.0) °C |
| Accuracy | ±0.5% FS (Conductivity & TDS), ±0.1% FS (Salinity), ±0.3 °C ±1 digit (Temperature) |
| Minimum Resolution | 0.01 µS/cm |
| Electrode Constant Options | 0.01, 0.1, 1, 10 cm⁻¹ |
| Data Storage Capacity | 200 measurement sets |
| Interface | RS-232 serial port |
| Compliance | Meets JJG 376–2007 (Chinese National Verification Regulation for Conductivity Meters), suitable for GLP-compliant environments with audit-ready data handling |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDS-11A |
| Form Factor | Benchtop |
| Conductivity Range | 0–1.999 S, 2.0–19.99 S, 20.0–199.9 S, 200–1999 S, 2.0–19.99 mS, 20.0–199.9 mS |
| Temperature Range | −5 to 105 °C |
| Accuracy | ±0.5% FS (conductivity), ±0.5 °C (temperature) |
| Resolution | 0.01 (conductivity units), 0.1 °C (temperature) |
| Temperature Compensation | Automatic, 0–100 °C, 2.0% / °C coefficient |
| Electrode Constant Compatibility | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Measurement Modes | Conductivity, TDS (calculated), Resistivity (calculated), Temperature |
| Calibration | Auto-calibration with standard solutions |
| Display | Large LCD, multi-parameter simultaneous readout |
| Instrument Class | 1.0 grade per GB/T 11018–2021 (equivalent to IEC 60746-3) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDS-307A |
| Conductivity Range | 0–1×10⁵ μS/cm |
| Cell Constants | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Accuracy | ±1.0% FS ±1 digit |
| Temperature Compensation | 15–35°C (ref. 25°C) |
| Sample Temp. Range | 5–60°C |
| Display | Dual-line LCD with blue backlight |
| Compliance | Class 1.0 according to JJG 376–2007 (Chinese national metrological verification regulation) |
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