Extech PH100 ExStik 0.00 to 14.00-PH Waterproof Meter
Now you can test pH on the spot easily and accurately with the ExStik PH100 Waterproof pH Meter. The durable ExStik meter features a flat surface electrode for measuring pH in liquids, semi-solids, and solids. A built-in smart chip offers memory recording of 15 settings, allowing you to compare readings over time. The ExStik lets you know when the meter needs recalibration and when it's time to replace your pH electrode, so you can reuse it again and again with confidence. Because you can refill the ExStik quickly, you won't need to worry about the shelf life of its electrode.