Replacement pH Electrode for SNS PHM-224, TDS-240, and ECM-226 Pen-Style Meters

Description

Optional Replacement electrode for pen type combo meters PHM-224, TDS-240 and ECM-226 (sold separately)

– Multi-parameter electrode for use in water testing applications
– Glass bulb membrane with a built-in temperature sensor
– Enhance accuracy by replacing the electrode regularly 
– Easy to change, simply unplug the used electrode and plug in the new one

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