HANNA HI 98129 Combo pH/ EC/ TDS/ Temperature Tester with Low Range EC

HI 98129 Combo pH/ EC/ TDS/ Temperature Tester with Low Range EC Range pH 0.00 to 14.00 pH Range EC 0 to 3999 µ S/ cm Range TDS 0 to 2000 ppm Range Temperature 0.0 to 60.0° C / 32 to 140.0° F Resolution pH 0.01 pH Resolution EC 1 µ S/ cm Resolution TDS 1 ppm 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.)