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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 | OHAUS |
|---|---|
| Origin | USA |
| Model | Starter 300 |
| pH Range | 0.00–14.00 |
| mV Range | −1999 to +1999 mV |
| Temperature Range | 0.0–100.0 °C |
| Resolution | 0.01 pH / 1 mV / 0.1 °C |
| Accuracy | ±0.01 pH / ±1 mV / ±0.5 °C |
| Calibration | Up to 3-point with user-defined buffer sets |
| Temperature Compensation | Automatic or manual (NTC 3 kΩ) |
| Input Impedance | >5 × 10¹² Ω |
| IP Rating | IP54 |
| Display | Backlit LCD |
| Power | 9 V DC adapter (AC 220 V/50 Hz input) |
| Dimensions | 160 × 200 × 65 mm |
| Weight | 0.65 kg |
| Housing Material | ABS |
| 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 |
| Instrument Type | Benchtop |
| Model | FE20 |
| pH Range | 0.00–14.00 |
| pH Resolution | 0.01 |
| Relative pH Accuracy | ±0.01 |
| mV/ORP Range | −1999 to +1999 mV |
| mV Resolution | 1 mV |
| Relative mV Accuracy | ±1 mV |
| Temperature Range | 0.0–100.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| Calibration | Up to 3-point, with 4 pre-defined buffer sets |
| Display | LCD |
| Power Supply | External AC adapter |
| Brand | Hanna Instruments |
|---|---|
| Origin | Italy |
| Model | HI98129 / HI98130 |
| pH Range | 0.00–14.00 pH |
| EC Range | 0–3999 µS/cm (HI98129) / 0.00–20.00 mS/cm (HI98130) |
| TDS Range | 0–2000 ppm (HI98129) / 0.00–10.00 ppt (HI98130) |
| Temperature Range | 0.0–60.0°C |
| pH Resolution | 0.01 pH |
| EC Resolution | 1 µS/cm (HI98129) / 0.01 mS/cm (HI98130) |
| TDS Resolution | 1 ppm (HI98129) / 0.01 ppt (HI98130) |
| Temp Resolution | 0.1°C / 0.1°F |
| pH Accuracy | ±0.05 pH |
| EC/TDS Accuracy | ±2% F.S. |
| Temp Accuracy | ±0.5°C |
| Calibration | Auto 1-/2-point pH |
| ATC | 0.0–60.0°C |
| Power | 4 × 1.5 V AAA batteries |
| IP Rating | IP67 |
| Dimensions | 163 × 40 × 26 mm |
| Weight | 100 g |
| Brand | Hanna Instruments |
|---|---|
| Origin | Italy |
| Model | HI98127 / HI98128 |
| pH Range | -2.0 to 16.0 pH (HI98127), -2.00 to 16.00 pH (HI98128) |
| Temperature Range | -5.0 to 60.0°C / 23.0 to 140.0°F |
| pH Resolution | 0.1 pH (HI98127), 0.01 pH (HI98128) |
| Temperature Resolution | 0.1°C / 0.1°F |
| pH Accuracy | ±0.1 pH (HI98127), ±0.05 pH (HI98128) |
| Temperature Accuracy | ±0.5°C / ±1°F |
| Calibration | Automatic 1- or 2-point with memory for two calibration sets (pH 4.01/7.01/10.01 or pH 4.01/6.86/9.18) |
| Temperature Compensation | Automatic (ATC) |
| Power | 4 × 1.5 V AAA batteries |
| Operating Environment | -5 to 50°C, up to 100% RH |
| Dimensions & Weight | 163 × 40 × 26 mm, 100 g |
| Brand | OHAUS |
|---|---|
| Origin | USA |
| Model | STARTER 2100/3C Pro |
| pH Range | 0.00–14.00 |
| mV Range | −1999 to +1999 mV |
| Temperature Range | 0.0–100.0 °C |
| Resolution | 0.01 pH / 1 mV / 0.1 °C |
| Accuracy | ±0.01 pH / ±1 mV / ±0.5 °C |
| Calibration | Up to 3-point with auto-buffer recognition |
| Temperature Compensation | Automatic or manual (NTC 30 kΩ sensor) |
| Input Impedance | >10¹² Ω (BNC pH input) |
| Power | AC 110–240 V, 50 Hz / DC 12 V |
| Dimensions | 220 × 175 × 78 mm |
| Weight | 0.75 kg |
| Display | LCD |
| Housing Material | ABS |
| Compliance | CE, ISO 9001, CMC certified |
| 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 | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | S20 |
| pH Range | 0.00–14.00 |
| pH Resolution | 0.01 |
| Relative pH Accuracy | ±0.01 |
| mV Range | −1999 to +1999 mV |
| mV Resolution | 1 mV |
| Relative mV Accuracy | ±0.4 |
| Temperature Range | −5.0 to 105.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| Display | LCD |
| Power Supply | External AC adapter or 4× AA (LR6) batteries |
| Calibration | Auto-buffer recognition, user-definable buffer sets, ATC, auto-endpoint hold |
| Brand | MYRON L |
|---|---|
| Origin | USA |
| Model | Ultrameter 6P |
| Instrument Type | Portable |
| Parameter Count | 6 |
| Measurement Accuracy | ±0.01 pH |
| pH Range | 0–14 |
| pH Resolution | 0.01 |
| pH Accuracy | ±0.01 pH |
| Calibration Solution | pH 7 buffer |
| Conductivity Range | Auto-ranging 0–9999 µS/cm, 10–200 mS/cm |
| TDS Range | 0–9999 ppm, 10–200 ppt |
| Resistivity Range | 10 kΩ·cm – 30 MΩ·cm |
| ORP Range | ±999 mV |
| Temperature Range | 0–71 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.1 °C |
| Auto Temperature Compensation | Yes (0–71 °C) |
| IP Rating | IP67 (NEMA 6) |
| Data Storage | 20 points with timestamp |
| Enclosure | Fully sealed, buoyant, submersible to 1 m |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | FG2 |
| Instrument Type | Portable |
| pH Range | 0.00–14.00 |
| pH Resolution | 0.01 |
| pH Accuracy (relative) | ±0.01 |
| mV Range | −1999 to +1999 mV |
| mV Resolution | 1 mV |
| mV Accuracy (relative) | ±1 |
| Temperature Range | 0.0–100.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| Calibration | Up to 3-point, with 4 predefined buffer sets |
| Data Storage | 30 measurements |
| Display | LCD |
| Power Supply | 4 × AAA 1.5 V batteries |
| IP Rating | IP54 |
| Operating Environment | 0–40 °C, 5–80 % RH |
| 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 | Hanna Instruments |
|---|---|
| Origin | Italy |
| Model | HI98107 |
| pH Range | 0.0 to 14.0 |
| Resolution | 0.1 pH |
| Accuracy | ±0.1 pH |
| Calibration | Manual 2-point |
| Electrode | HI73106 replaceable pH electrode |
| Power | 4 × 1.5 V AAA batteries |
| Operating Environment | 0 to 50 °C, ≤95% RH |
| Dimensions | 175 × 41 × 23 mm |
| Weight | 95 g |
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | SG2 |
| pH Range | 0.00–14.00 |
| pH Resolution | 0.01 |
| pH Accuracy (relative) | ±0.01 |
| mV Range | −1999 to +1999 mV |
| mV Resolution | 1 mV |
| mV Accuracy (relative) | ±1 |
| Temperature Range | −5.0 to 105.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| Display | Custom LCD |
| IP Rating | IP67 |
| Data Storage | 30 measurements |
| Calibration | Up to 3-point, with predefined or user-defined buffer sets (DIN, NIST, US, TECH) |
| Connectivity | IR interface (RS232/USB via optional adapter) |
| Operating Environment | 5–40 °C, 5–80% RH (non-condensing) |
| 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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