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The Low and High ISE standards are used to calibrate our Potassium Ion-Selective Electrodes.
Due to recent changes in U.S. trade policy, new tariffs are being implemented that impact our products. This means a surcharge of 5% will be applied to orders received starting May 12th, with the exception of software and books. Learn more.
Consumable. Warranted on arrival only. See our warranty policy
Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.