This short-range Hydrion MicroFine pH Paper measures pH solutions in the acid pH range of 2.9-5.2 and offers clear bright single color matches at every 0.3 to 0.4 interval.

• Provides precise, pinpoint pH measurement over a narrow pH range
• Ultra-fast results with accuracy in intervals of 0.2 - 0.3 pH
• Fit easily in to small tubes

These are ideally suited to testing minute amounts of solution, only requiring 0.0001mL for an accurate measurement.