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| Brand | Hanna Instruments |
|---|---|
| Origin | Italy |
| Model | HI98309 |
| Measurement Range | 0.000 to 1.999 µS/cm |
| Resolution | 0.001 µS/cm |
| Accuracy | ±2% of Full Scale |
| Calibration | Factory-Calibrated (No User Calibration Required) |
| Power Supply | 4 × 1.5 V Button Cell Batteries (LR44) |
| Operating Environment | 0 to 50 °C |
| Dimensions | 175 × 41 × 23 mm |
| Weight | 95 g |
| Brand | Hanna Instruments |
|---|---|
| Origin | Italy |
| Model | HI98303, HI98304 |
| Measurement Range | 0–1999 µS/cm (HI98303), 0.00–19.99 mS/cm (HI98304) |
| Resolution | 1 µS/cm (HI98303), 0.01 mS/cm (HI98304) |
| Accuracy | ±2% F.S. |
| Calibration | Manual single-point |
| Recommended Calibration Solutions | HI7031L (for HI98303), HI7030L (for HI98304) |
| Temperature Compensation | Automatic (0–50°C) |
| Power Supply | 4 × 1.5 V AAA batteries |
| Operating Environment | 0–50°C, ≤95% RH |
| Dimensions & Weight | 175 × 41 × 23 mm, 95 g |
| Brand | MYRONL |
|---|---|
| Origin | USA |
| Model | Ultrameter 4P |
| Portability | Portable |
| Conductivity Range | 0–200 mS/cm |
| TDS Range | 0–9999 ppm |
| Resistivity Range | 10 kΩ·cm – 30 MΩ·cm |
| Salinity Range | Not applicable (dedicated conductivity/TDS/resistivity/temperature model) |
| Temperature Range | 0–71 °C |
| Accuracy | ±1% of reading |
| Minimum Conductivity Resolution | 0.01 µS/cm |
| Enclosure Rating | IP67 (NEMA 6) |
| Data Storage | 20 points with timestamp |
| Auto-Temperature Compensation | Yes (0–71 °C) |
| Electrode Design | Integrated, field-replaceable dual-cell conductivity sensor with built-in temperature probe |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | SG3 |
| Conductivity Range | 0.10 µS/cm to 500 mS/cm |
| Temperature Range | –5.0 to 105.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.2 °C |
| Conductivity Accuracy | ±0.5% |
| Salt Range | 0.00–80.00 ppt |
| TDS Range | 0.10 mg/L–300 g/L |
| TDS Resolution | 0.01–1 (unit-dependent) |
| TDS Accuracy | ±0.5% |
| Display | Custom LCD |
| Power | 4 × AA alkaline or rechargeable batteries |
| Operating Environment | 5–40 °C, 5–80% RH (non-condensing) |
| Data Storage | 30 measurements |
| IP Rating | IP67 (with InLab® 738/742 electrodes) |
| Compliance | Meets ISO 7888, ASTM D1125, USP <645>, and GLP data integrity requirements for field and lab use |
| Brand | Hanna Instruments |
|---|---|
| Origin | Italy |
| Model | HI98301 / HI98302 |
| Measurement Range (HI98301) | 0–1999 ppm (mg/L) |
| Resolution (HI98301) | 1 ppm |
| Measurement Range (HI98302) | 0.00–10.00 ppt (g/L) |
| Resolution (HI98302) | 0.01 ppt |
| Accuracy | ±2% of full scale |
| Calibration | Manual single-point with HI7032L (for HI98301) or HI70038P (for HI98302) |
| Temperature Compensation | Automatic, 0–50 °C |
| Power | 4 × 1.5 V AAA batteries |
| Dimensions | 175 × 41 × 23 mm |
| Weight | 95 g |
| Operating Environment | 0–50 °C, ≤95% RH |
| Brand | MyronL |
|---|---|
| Origin | USA |
| Model | EP/512M5/EP10 |
| Conductivity Ranges | 0–0.5 µS, 0–5 µS, 0–50 µS, 0–500 µS, 0–5000 µS, 0–10 mS, 0–100 mS, 0–1000 mS, 0–10,000 µS |
| Resistivity Range | 2–30 MΩ |
| Accuracy | ±2% of full scale (all ranges) |
| Automatic Temperature Compensation | 10–71 °C |
| Power | 9 V alkaline battery (≈2000 measurements/year) |
| Electrode Type | Maintenance-free conductive cell |
| Compliance | Designed for field and lab use in accordance with ASTM D1125 and ISO 7888 principles |
| Brand | MYRONL |
|---|---|
| Origin | USA |
| Model | 532T1 |
| Measurement Principle | Two-electrode conductivity cell with linear TDS conversion (NaCl equivalence) |
| TDS Range | 0–50 / 0–500 / 0–5000 ppm (auto-ranging) |
| Resolution | 1 ppm (0–50 ppm), 10 ppm (0–500 ppm), 100 ppm (0–5000 ppm) |
| Accuracy | ±2% of full scale |
| Temperature Compensation | Automatic, 10–71 °C |
| pH Range | 0.0–14.0 (with replaceable pH electrode) |
| Power | 9 V alkaline battery (approx. 2,000 measurements/year) |
| Electrode Type | Maintenance-free graphite conductivity cell |
| Enclosure | IP65-rated rugged ABS housing |
| Compliance | Designed for field and lab use per ASTM D1125 and ISO 7888 guidelines for conductivity/TDS estimation |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | S30 |
| Temperature Range | –5.0 to 105.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.2 °C |
| Conductivity Range | 0.01 µS/cm to 500 mS/cm (auto-ranging) |
| Conductivity Accuracy | ±0.5% of reading |
| Salinity Range | 0.00–80.00 ppt |
| TDS Range | 0.1 mg/L to 500 g/L |
| TDS Factor | User-definable (0.40–1.00) |
| Resistivity Range | 0.000 Ω·cm to 100.0 MΩ·cm |
| Electrode Constant Input | User-configurable |
| Display | Backlit LCD with simultaneous parameter + temperature readout |
| Power Supply | AC adapter (included) or 4× AA (LR6) batteries |
| Interface | RS232 for data export |
| Compliance | Designed for GLP-compliant workflows |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | FG3 |
| Conductivity Range | 0.01 µS/cm to 199.9 mS/cm |
| TDS Range | 0.01 mg/L to 199.9 g/L |
| Salinity Range | 0.00–19.99 psu |
| Temperature Range | 0.0–100.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.3 °C |
| Conductivity Accuracy | ±0.5 % of reading |
| Calibration | Single-point automatic calibration |
| Display | LCD with simultaneous readout of conductivity/TDS/salinity, temperature, endpoint status, and system symbols |
| Protection Rating | IP54 |
| Power Supply | 4 × AAA 1.5 V batteries |
| Operating Environment | 0–40 °C, 5–80 % RH |
| Data Storage | 30 measurement records |
| Compensation | Linear temperature compensation with selectable reference temperature (e.g., 20 °C or 25 °C) |
| Auto-Endpoint Detection | Yes |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | FE30 |
| Temperature Range | 0.0–100.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.3 °C |
| Conductivity Range | 0.00 µS/cm to 199.9 mS/cm |
| TDS Range | 0.00 mg/L to 199.9 g/L |
| Conductivity Accuracy | ±0.5% of reading |
| Display | LCD |
| Power Supply | External AC adapter |
| Operating Environment | 5–40 °C, 5–80% RH |
| Compliance | Designed for GLP-compliant workflows |
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