HANNA HI 991301 HR pH EC TDS °C °F Waterproof Meter

HANNA Instruments HI 991301 HR pH EC TDS °C °F Waterproof Meter, HI991301

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HANNA instruments 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) 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) 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.)