The Oakton® EcoTestr pH2 Plus offers The expanded four-digit dual-line display shows pH and temperature readings simultaneously. The improved, leakproof cap design functions as a sample cup and as a stabilizing base to stand the meter upright. The waterproof housing floats, and is compatible with lanyards. Reads pH from 0.0 to 14.0 with automatic temperature compensation and up to three-point calibration. One-year warranty.