HANNA, HI 98128 Waterproof PH Tester With Replaceable Electrode W/ Accuracy ± 0.05 PH

When HANNA® introduced its first version of the pHep ( pH electronic paper) in 1986, it immediately revolutionized the standard in pH measurement. pHep' s ease-of-use in combination with its affordability made it possible for non-technical and technical personnel alike to measure pH on the spot, accurately and inexpensively throughout a variety of industries. Since its introduction, over 1 million pHeps have gone to satisfied customers around the world. We at HANNA® have always valued the comments and suggestions coming from our customers. For this series, we have included all of the features you have asked for and more! The pHep 4 and pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing. Range pH -2.00 to 16.00 pH Range Temperature -5.0 to 60.0° C / 23.0 to 140.0° F Resolution pH 0.01 pH Resolution Temperature 0.1° C / 0.1° F Accuracy pH ± 0.05 pH Accuracy Temperature ± 0.5° C / ± 1° F pH Calibration automatic, at 1 or 2 points with 2 sets of memorized buffers ( pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) Temperature Compensation Automatic Battery Type / Life 4 x 1.5V with BEPS / approx. 300 hours of continuous use; auto-off after 8 minutes of non-use Environment -5 to 50° C ( 23 to 122° F) ; RH max 100% Dimensions 163 x 40 x 26 mm ( 6.4 x 1.6 x 1.0" ) Weight 100 g ( 3.5 oz.) Solutions HI 70004P 4.01 pH Buffer Solution HI 70006P 6.86 pH Buffer Solution 25 x 20 mL sachets HI 70007P 7.01 pH Buffer Solution 25 x 20 mL sachets HI 70009P 9.18 pH Buffer Solution 25 x 20 mL sachets HI 70010P 10.01 pH Buffer Solution 25 x 20 mL sachets HI 7061M General Purpose Cleaning Solution 1 x 230 mL bottle Accessories HI 73127 Spare electrode for HI 98121, HI 98127, HI 98128, HI 98129 and HI 98130 HI 98128 ( pHep 5) is supplied with protective cap, electrode removal tool, batteries and instructions. Range pH -2.00 to 16.00 pH Range Temperature -5.0 to 60.0° C / 23.0 to 140.0° F Resolution pH 0.01 pH Resolution Temperature 0.1° C / 0.1° F Accuracy pH ± 0.05 pH Accuracy Temperature ± 0.5° C / ± 1° F pH Calibration automatic, at 1 or 2 points with 2 sets of memorized buffers ( pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) Temperature Compensation Automatic Battery Type / Life 4 x 1.5V with BEPS / approx. 300 hours of continuous use; auto-off after 8 minutes of non-use Environment -5 to 50° C ( 23 to 122° F) ; RH max 100% Dimensions 163 x 40 x 26 mm ( 6.4 x 1.6 x 1.0" ) Weight 100 g ( 3.5 oz.) Solutions HI 70004P 4.01 pH Buffer Solution HI 70006P 6.86 pH Buffer Solution 25 x 20 mL sachets HI 70007P 7.01 pH Buffer Solution 25 x 20 mL sachets HI 70009P 9.18 pH Buffer Solution 25 x 20 mL sachets HI 70010P 10.01 pH Buffer Solution 25 x 20 mL sachets HI 7061M General Purpose Cleaning Solution 1 x 230 mL bottle Accessories HI 73127 Spare electrode for HI 98121, HI 98127, HI 98128, HI 98129 and HI 98130 HI 98128 ( pHep 5) is supplied with protective cap, electrode removal tool, batteries and instructions. Manual: ( Download)