HANNA INSTRUMENTS HI98103 PH Tester, 0.00 to 14, 2 pt.. More details: PH Tester, pH Range 0.00 to 14.00, Waterproof No, Automatic Temperature Compensation No, Display Single Line LCD, Temperature Compensation Range No, Calibration 2 pt., Includes Large LCD and Two-point, Fast and Accurate Calibration, Replaceable Screw-type, Combination PH Electrode, Battery