Extech Waterproof PH Meter - PH90

PH90 Waterproof PH Meter by Extech

Rugged waterproof (IP57) housing with Flat Surface Electrode for measuring pH in liquids, semi-solids, and solids. Does not break or get junctions clogged like traditional glass bulb electrodes. Easy to replace sensor is perfect for field or lab use.

Features

• Rugged replaceable flat surface pH electrode for quick on-the-spot pH measurements
• Simultaneous display of pH and Temperature
• 2 or 3 point calibration automatically recognizes buffer solutions (order pH buffers separately)
• PTS (percent of slope) tells you when it's time to replace your electrode (below 70% or above 130%)
• Automatic Temperature Compensation
• Data Hold, Min/Max, Auto Power Off, and low battery indication
• Waterproof design (IP57) floats in water and protects the meter in wet environment
• Complete with flat surface pH electrode, protective sensor cap, and two 3V CR-2032 button batteries