Bluelab OnePen Replacement Probe

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A replacement pH, Conductivity (EC), and Temperature Probe for Bluelab OnePen (PENONE) Maximise the life & accuracy of your Bluelab OnePen Features: Extends the life of your Bluela b OnePen minimising the need for full device replacements Quick and simple to replace, reducing downtime and keeping your OnePen functioning optimally Built to last with a double-junction pH probe and titanium EC electrodes Delivers precise pH, Conductivity (EC), and Temperature readings with easy calibration Cost-effective, sustainable maintenance IP68-certified waterproof and dustproof Show more