Extech PH305  

Extech PH305: pH/mV/Temperature Electrode

Replacement pH/mV/Temperature Electrode

The PH305 is an electrode capable of measuring pH,mV and Temperature. For use with Extech PH300 Waterproof pH/mV/Temperature Kit, EC600 Waterproof Conductivity Kit, and DO700 Portable Dissolved Oxygen Meter. Comes with a 6 month warranty.