Hanna PHEP Tester (Model HI 98107) The HI 98107 (pHep ), which is the result of over two decades of research and manufacturing experience, is the updated version of our widely popular 96107 (pHep ). Today the redesigned pHep series feature a rugged and ergonomically enhanced casing that fits comfortably in your hand and a larger LCD which makes it easier to read at any angle. With the latest innovation of a non-clogging fiber junction the new pHep meters last much longer. Simply pull out 1-2 mm (1/8") of the junction fiber to completely renew the junction. The pHep offers a Range of 0.0 to 14.0 pH and an Accuracy of +/-0.1 pH. This tester is calibrated manually to 2 points. MSRP: $55.95
