The HI 98129 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 . Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester brings you all the features you've asked for and more! Click Here for PDF Manual Range pH 0.00 to 14.00 pH Range EC 0 to 3999 S/cm Range TDS 0 to 2000 ppm Range Temperature 0.0 to 60.0C / 32 to 140.0F Resolution pH 0.01 pH Resolution EC 1 S/cm Resolution TDS 1 ppm Resolution Temperature 0.1C / 0.1F Accuracy pH 0.05 pH Accuracy EC/TDS 2% F.S. Accuracy Temperature 0.5C / 1F Temperature Compensation pH: automatic; EC/TDS: automatic with 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 50C (32 to 122F); 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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