The Pocket ISFET pH Meter eliminates the problems associated with ordinary glass pen-type pH meters. It calibrates easily with a single drop of buffer, stores dry and fits conveniently in your pocket. The versatile Pocket ISFET pH Meter handles everything from foods to dirty samples and semi-solids. The 24003 Model is designed with automatic temperature compensation and a replaceable reference electrode.

The reference electrode is designed to provide visual indication when replacement becomes due. The Pocket ISFET pH Meter also features a one-touch calibration, one drop measurement, fast response time, long term stability, splash-proof housing, and automatic power-off.