Extech EC505  

Extech EC505: ExStik® Replacement pH Electrode/Conductivity Cell Module

Combination flat surface pH electrode/conductivity cell for ExStik® Conductivity meters

The EC505 is an ExStik® Replacement pH Electrode/Conductivity Cell Module. For use with the Extech EC500 Waterproof ExStik® II pH/Conductivity Meter. Measures conductivity, TDS, salinity, pH and temperature. Comes with a year warranty.