Meter with flat surface electrode for fast and easy on-the-spot pH measurementsFeatures:Built-in Smart chip offers advanced functions and features to a stick style pH meter not found anywhere elseRENEW feature that tells you when it's time to replace your pH electrodeCAL feature that tells you when it's time to recalibrate your meterFlat Surface pH electrode that is completely waterproof and rugged enough to withstand harsh environmentsAnalog barograph originates at neutral point (pH 7.00) to conveniently view trends in acidity or alkalinityTemperature measurements with Automatic Temperature Compensation1, 2 or 3 point calibration automatically recognizes buffer solutions. Order pH buffers separatelyComplete with flat surface pH electrode, protective sensor cap, sample cup with cap, four 3V CR-2032 button batteries, and 48" (1.2m) neck strap