| Range – pH/ORP | -2.00 to 16.00 pH; -2.000 to 16.000 pH / ±699.9 mV; ±2000 mV | |
| Range – EC | 0.00 to 29.99 µS/cm; 30.0 to 299.9 µS/cm; 300 to 2999 mS/cm 3.00 to 29.99 mS/cm; 30.0 to 200.0 mS/cm; up to 500.0 mS/cm actual EC* |
|
| Range – TDS | 0.00 to 14.99 ppm; 15.0 to 149.9 ppm; 150 to 1499 ppm; 1.50 to 14.99 g/L; 15.0 to 100.0 g/L; up to 400.0 g/L actual TDS* |
|
| Range – NaCl | 0.0 to 400.0% NaCl | |
| Range – Temperature | -10 to 120.0°C (pH); 0.0 to 60.0°C (EC) | |
| Resolution – pH/ORP | 0.01 pH; 0.001 pH / 0.1 mV (±699.9 mV); 1 mV (±2000 mV) | |
| Resolution – EC | 0.01 µS/cm; 0.1 µS/cm; 1 µS/cm; 0.01 mS/cm; 0.1 mS/cm | |
| Resolution – TDS | 0.01 ppm; 0.1 ppm; 1 ppm; 0.01 g/L; 0.1 g/L | |
| Resolution – NaCl | 0.1% NaCl | |
| Resolution – Temperature | 0.1°C | |
| Accuracy – pH/ORP | ±0.01 pH; ±0.002 pH / ±0.2 mV (±699.9 mV); ±1 mV (±2000 mV) | |
| Accuracy – EC | ±1% of reading ±(0.05 µS/cm or 1 digit) | |
| Accuracy – TDS | ±1% of reading ±(0.03 ppm or 1 digit) | |
| Accuracy – NaCl | ±1% of reading | |
| Accuracy – Temperature | ±0.4°C (excluding probe error) | |
| Relative mV Offset Range | ±2000 mV | |
| Calibration – pH | automatic, at 1, 2 or 3 points, with 5 memorised buffers (4.01, 6.86, 7.01, 9.18, 10.01) | |
| Calibration – EC | automatic, 1 point, with 6 memorised values (84.0 and 1413 µS/cm; 5.00, 12.88, 80.0 and 111.8 mS/cm) | |
| Calibration – NaCl | automatic, 1 point, with HI-7037L calibration solutions | |
| Temperature Compensation | manual or automatic, -10.0 to 120.0°C (14 to 248°F) for pH; 0.0 to 60.0°C (32 to 140°F) for EC; (can be disabled for measuring actual EC and TDS values) | |
| Temperature Coefficient | 0.00 to 6.00%/°C (EC and TDS only); default value: 1.90%/°C | |
| TDS Conversion Factor | 0.40 to 0.80; default value: 0.50 | |
| pH Electrode | HI-1131B (included) | |
| EC Probe | HI-76310 (included) | |
| Temperature Probe | HI-7662 (included) | |
| PC Connection | RS232 opto-isolated serial port | |
| Data Logging | 200 samples | |
| Input Impedance | 1012 Ohm | |
| Power Supply | 12 Vdc adapter (included) | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% | |
| Dimensions | 240 x 182 x 74 mm (9.4 x 7.2 x 2.9″) | |
| Weight | 1.1 kg (2.4 lb.) |
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