Hanna* Portable pH/Conductivity/TDS Meter

Specifically designed for field use to eliminate the need for multiple instruments during water quality analysis. Probe 240-69697 simultaneously measures pH, conductivity and TDS, and features a cloth junction and gel electrolyte for faster response and reduced contamination problems. Manual one-point calibration for pH and conductivity/TDS modes. Automatic temperature compensation ensures accuracy of readings. Operates on one 9V battery (included) for up to 150 hours. Alert sounds when battery is low enough to affect readings.