pHep 4 pH Testers Hanna pH hand-held meter that measures pH as well as temperature. The meter automatically compensates for solution temperature for more accurate and quick readings. Hanna ID: HI98127 Dual Level Display Showing pH & Temp. Rugged, Floating Waterproof Casing Replaceable pH Electrode Featuring an Extendable Junction The waterproof pHep 4 pH tester has a dual-level LCD that displays pH and degrees C or degrees F. At startup, pHep performs a self check then displays the remaining battery level to assure proper working condition. These testers also feature a stability indicator and hold feature to prompt the user when to take the reading & freeze the display for easy and accurate recording. These pH/Temperature meters have a stainless steel temperature probe for faster and more precise temperature measurement and auto-compensation. 1 or 2 point calibration is made simple with automatic recognition of both standard and NIST buffer sets. We have designed the new pHep pH electrodes with an extendable reference junction and when the electrode finally is exhausted simply insert a new electrode cartridge! HI 98127 (pHep 4) is supplied complete with protective cap, electrode removal tool, batteries and instructions.