HANNA HI 98130 Combo pH/EC/TDS/Temperature Tester with High Range EC   Description The HI 98130 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester! No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to-read, dual-level LCD and automatic shut-off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This technologically advanced tester has a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode that resists contamination by salts and other substances. This gives these meters a greatly extended life. Your tester no longer needs to be thrown away when the pH sensor is exhausted. The EC/TDS conversion factor is user selectable as is the temperature compensation coefficient (ß). Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester brings you all the features you've asked for and more! HI 98130 is supplied with protective cap, electrode removal tool, batteries and instructions. Specifications 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 Range Temperature 0.0 to 60.0°C / 32 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 ±0.05 pH Accuracy EC/TDS ±2% F.S. Accuracy Temperature ±0.5°C / ±1°F Temperature Compensation   pH: automatic; EC/TDS: automatic with ß adjustable from 0.0 to 2.4% / °C Calibration pH automatic, 1 or 2 points with 2 sets of memorized buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18) Calibration EC/TDS automatic, 1 point TDS Conversion Factor   adjustable from 0.45 to 1.00 pH Electrode   HI 73127 (replaceable; included) Environment   0 to 50°C (32 to 122°F); RH max 100% Battery Type / Life   4 x 1.5V / approx. 100 hours of continuous use; auto-off after 8 minutes of non-use Dimensions   163 x 40 x 26 mm (6.4 x 1.6 x 1.0") Weight   100 g (3.5 oz.)

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