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The availability at retail stores may vary. For better service, order online or contact the store
Click on an image to open Gallery
HANNA® offers you a choice of 2 meters to meet your exacting requirements. HI 991300 and HI 991301 offer you the combination of pH, electro-conductivity, total dissolved solids and temperature. To increase precision, you can select the meter which will work best with your range of conductivity, from purified to brackish waters.
There are only 2 buttons, yet you can select from a range of calibration buffers and even the temperature scale (°C or °F) most familiar to you. The housing is waterproof and rated for IP 67 conditions.
The multi-parameter probe, HI 1288, includes pH, EC/TDS and temperature in one convenient, rugged handle.
Other user selectable features include different TDS factors from 0.45 to 1.00, and a range of temperature coefficients (ß) from 0.0 to 2.4% for greater consistency and reproducibility. Also selectable are standardized buffer recognition values.
To ensure against interference from transient electrical noise, a solid-state amplifier is integrated into the probe.
| Range | pH | 0.00 to 14.00 pH |
| Range | EC | 0.00 to 20.00 mS/cm |
| Range | TDS | 0.00 to 10.00 ppt (g/L) |
| Range | Temperature | 0.0 to 60.0°C (32.0 to 140.0°F) |
| Resolution | pH | 0.01 pH |
| Resolution | EC | 0.01 mS/cm |
| Resolution | TDS | 0.01 ppt |
| Resolution | Temperature | 0.1°C (0.1°F) |
| Accuracy | pH | ±0.01 pH |
| Accuracy | EC | ±2% F.S. |
| Accuracy | TDS | ±2% F.S. |
| Accuracy | Temperature | ±0.5°C (±1.0°F) |
| TDS Conversion Factor | selectable 0.45 to 1.00 with 0.01 increments (default 0.50) | |
| pH Calibration |
automatic at 1 or 2 points with 2 sets of memorized standard (pH 4.01/7.01/10.01 or 4.01/6.86/9.18) |
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| EC/TDS Calibration |
automatic, 1 point at 6.44 ppt (CONV 0.5) at 9.02 ppt (CONV 0.7) at 12880 µS/cm (others) |
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| Temperature Compensation | pH | Automatic |
| Temperature Compensation | EC/TDS | Automatic with selectable ß from 0.0 to 2.4%/°C with 0.1 increments |
| Probe | HI 1288, pH/EC/TDS/T, DIN connector, 1 m (3.3') cable (included) | |
| Battery Type / Life | 4 x 1.5V AAA / approx. 500 hours of continuous use | |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% | |
| Dimensions | 150 x 80 x 36 mm (5.9 x 3.1 x 1.4") | |
| Weight | 210 g (7.4 oz.) |
Having trouble with any of our products or just want to return? You can return it within 14 days of receipt or ask for replacemend or refund.
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