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by using the polarity bit in the config register
Stainless Steel Spear Tip Shell x1
Note: Standard drawer type card holder
PAC1921 datasheet
PC2121-5M pH Industrial Electrode - 3551_0 Water Quality by using the polarity bitPC2121 5M pH Industrial Electrode 3551_0 This industrial electrode measures the pH of a solution and connects to a pH ORP Adapter. The PC2121 is an economical combination electrode ideal for general industrial processes. It is well suited for testing pool water, sea water or underground water. It can also be used at high temperature in strong acid or base environments. The electrode provides a fast, stable response and is ideal for prolonged pH