Hanna Instruments HI 98121 Combination pH/ORP/Temperature Tester
Price 139.05 USD
One- or two-point manual pH calibration for obtaining results across a wide range * Non-clogging fiber junction and replaceable electrode to prolong life of meter * Automatic Temperature Compensation (ATC) eliminates need for extra calculations * Waterproof and floats if dropped in water * Large LCD screen for readability