Hanna Combo Water Proof Tester pH/EC/TDS/C tester
	Rating: 5.00 Quantity in Basket: none Code: HI-98129 Price:$144.95
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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 (á). Fast, efficient, accurate and portable, the  Combo pH, EC/TDS and temperature tester brings you all the features you've  asked for and more!                                                                                                      Range pH 0.00 to 14.00 pH Range EC 0 to 3999 æS/cm Range TDS 0 to 2000 ppm Range Temperature 0.0 to 60.0øC / 32 to 140.0øF Resolution pH 0.01 pH Resolution EC 1 æS/cm Resolution TDS 1 ppm Resolution Temperature 0.1øC / 0.1øF Accuracy pH ñ0.05 pH Accuracy EC/TDS ñ2% F.S. Accuracy Temperature ñ0.5øC / ñ1øF Temperature Compensation   pH: automatic; EC/TDS: automatic with á  adjustable from 0.0 to 2.4% / øC 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 50øC (32 to 122øF); 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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5 worth the $	06/08/2008 - by J. Martens from Illinois
Allows me to take quick readings for pH and temp in all my tanks as well as check all of my customers makeup water for purity. As an added benefit, works great in helping me provide a low pH, low TDS environment for my soft water freshwater tanks, no more guess work.