The 4HA1271 is the Spare pH Electrode for 4HA98100 / 4HA98103 / 4HA98115 Checker® pH meters. Replacing the pH electrode is both quick and easy. Simply unscrew the old probe to be replaced and screw on the new one. The 4HA1271 is a single junction pH electrode that has a slim 8 mm polypropylene body that easily fits into test tube and other small sized vessels.
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