REPLACEMENT ELECTRODE FOR pHEP 4 OR pHEP 5
WATERPROOF pHep® 4 & 5 pH PENS

• 2 line LCD displays pH and temperature simultaneously• Battery level readout and Auto-shutoff prolong life• pH stability indicator lets you know when your reading is stable• Data-hold button freezes display for easy data recording• Automatic temperature compensation and auto-calibration make it the easiest pen to use• 100% Waterproof casing that floats• Calibrate to standard or NIST buffers• Temperature readout in C and F