EXTECH® Waterproof pH Pen

Pocket-Sized EXTECH Waterproof pH Pen is Economical and Easy to Use

The Waterproof pH Pen features single-key calibration with automatic pH buffer recognition. Choice of three-point calibration for better accuracy. Data-hold feature freezes displayed readings. Low-battery indicator with auto shut-off saves your battery, but can also be disabled. Comes with a sensor cap, inner pH electrode protection cap and four LR44 button batteries. 2.0–12.0 pH range. 0.1 pH, 0.1° resolution. ±0.3 pH accuracy. Electrode is NOT replaceable.
Compliance: CE approved. IP67 rated.