Ag-AgCl Electrode 12mm X 1mm Disk with 6mm center hole, 10mm exposed wire. These sintered Silver-Silver Chloride (Ag/AgCl) electrodes incorporate a fine grain, homogeneous mixture of Silver and Silver Chloride compressed and sintered to strengthen and stabilize. They are reusable, resurfaceable, never need rechloriding and are essentially non-polarizable. Sintered Ag/AgCl electrodes are known for their low offset voltage, low noise and stability and can be used indefinitely with minimal care. This electrode is 1mm thick, and is provided with a 10 mm exposed Silver wire. Electrical Specifications: Typical values of the key parameters, measured in 0.9% saline, between pairs of Ag-AgCl electrodes of the same size DC offset Voltage: 180 V, Drift: 25 V/hr, Noise: 1 V p-p (0.1-1 kHz with 60 Hz eliminated).