Backed by proprietary Swiss sensor technology and materials, the LabSen® 251 Combination Spear pH Electrode is designed for testing soft solid and semi-solid samples such as cheese, butter, dough, fruit, etc.
Long-Life Reference System - The LabSen® 251 pH electrode adopts a long-life reference system, which is composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of the reference electrode and extends the service life of the electrode.
Polymer Electrolyte - The solid polymer electrolyte makes the electrode hard to be contaminated and maintenance-free.
Special Glass Membrane - The LabSen® 251 pH electrode adopts a spear glass membrane, which is ideal for testing semi-solid samples and can be tested in high-temperature samples (up to 176°F).
The electrode is backed up with a 6-month warranty by Apera Instruments.
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