| pH resolution | 0.01pH |
| Measurement Accuracy of pH | ±0.02pH |
| pH calibrated | Automatic one-point, two-point, or three-point, automatically recognizes five standard buffers (pH 4.01, 6.86, 7.01, 9.18, 10.01) or one custom buffer |
| Acid alkalinity calibrated | ±2000.0 mV |
| ORP resolution | 0.1mV |
| ORP Accuracy | ±1.0 mV |
| ORP calibrated | Automatic at a custom point (relative to mV) |
| mV range | ±600.0 mV |
| mV resolution | 0.1mV |
| mV Measurement Accuracy | ±0.5mV |
| EC Series | 0 to 200 mS/cm (absolute EC up to 400 mS/cm) |
| EC resolution | automatic range |
| EC Accuracy | +/- 1% or +/- 1 μS/cm of the reading, whichever is greater |
| EC calibrated | Automatic single point with six standard solutions (84 μS/cm, 1413 μS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm) or custom points |
| TDS parameter | 0 to 400,000 ppm (mg/L); (MAX Maximum depending on TDS coefficient) |
| TDS Resolution | manual |
| TDS Accuracy | +/- 1% of the reading or +/- 1 ppm (mg/L), whichever is greater |
| TDS calibrated | Based on conductivity or salinity calibrated |
| Salinity (PSU) range | 0.00 to 70.00 PSU |
| Salinity (PSU) resolution | 0.01 Power Supply |
| Salinity (PSU) Accuracy | +/- 2% reading or +/- 0.01 PSU, whichever is greater |
| Salinity (PSU) calibrated | Based on conductivity calibrating |
| Salinity (Seawater Sigma) range | 0.0 to 50.0 Sigma t , σ₀, σ₁₅ |
| Salinity (Seawater Sigma) resolution | 0.1 σt, σ₀, σ₁₅ |
| Salinity Accuracy | ±1 σt, σ₀, σ₁₅ |
| Salinity (seawater sigma) calibrated | Based on conductivity or salinity calibrated |
| Resistivity range | 0 to 999999Ω • cm; 0 to 1000.0 kΩ • cm; 0 to 1.0000 MΩ • cm |
| Resistivity resolution | Depends on resistivity reading |
| Resistivity calibrated | Based on conductivity calibrating |
| Dissolved oxygen measurement type | Polarography |
| Dissolved oxygen range | 0.0 to 500.0%; 0.00 to 50.00 ppm (mg/L) |
| Dissolved oxygen resolution | 0.1%; 0.01 ppm (mg/L) |
| Dissolved oxygen Accuracy | 0.0 to 300.0% saturation |
| Dissolved oxygen calibrated | Automatically one or two points at 0 and 100% or 100%, or a custom point |
| Dissolved oxygen temperature compensation | Automatically from 0.0 to 50.0 ° C (32.0 to 122.0 ° F) |
| Air pressure compensation | Automatic from 450 to 850 mmHg |
| Salinity compensation | Automatically from 0 to 70 g/L |
| Temperature range | Temperature range |
| Temperature Resolution | 0.01 K,0.01 °C,0.01 °F |
| Temperature Accuracy | ±0.15 °C;±0.27 °F;±0.15 K |
| Temperature calibrated | Automatically at a custom point |
| temperature compensation | Automatic from -5 to 55 ° C (23 to 131 ° F) |
| recording memory | 45,000 records (continuous logging or recording of all parameters on demand) |
| recording interval | One second to three hours |
| connect | USB to PC with HI9298194 Hanna software installed |
| Battery Type/Lifespan | 1.5V AA battery (4)/about 360 hours of continuous use without backlight (50 hours of backlight) |
| environment | 0 to 50 ° C (32 to 122 ° F); Relative Humidity 100% (IP67) |
| Dimension | 185 * 93 * 35.2Mm (7.3 * 3.6 * 1.4 inches) |
| Weight | 400 grams (14.2 ounces) |
| Atmospheric pressure range | 450 to 850 mmHg; mercury levels 17.72 to 33.46; 600.0 to 1133.2 mbar; 8.702 to 16.436 psi; 0.5921 to 1.1184 atm; 60.00 to 113.32 kPa |
| Atmospheric pressure resolution | 0.1 mmHg; 0.01 mercury content; 0.1 mbar; 0.001 psi; 0.0001 atmospheres; 0.01 kPa |
| Measurement Accuracy of atmospheric pressure | +/- 3 mm Hg within +/- 15% of the calibrated point |
| Atmospheric pressure calibrated | Automatically at a custom point |
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;