Extech replacement conductivity cells are for use with Extech EC400 or EC500 conductivity meters. The replacement cell for the EC400 is a standard conductivity cell while for EC500 the cell is a combination conductivity cell/pH electrode.
Extech replacement conductivity cells are easy to clean, rugged flat surface cell modules that measure conductivity, TDS, salinity, temperature, and pH (EC500 only). Automatic temperature compenstion is via a built-in Pt-100Ohm sensor.