All pH and REDOX (ORP) electrodes in this series are easy maintenance, cartridge-type combination electrodes with quick disconnect BNC connectors. Electrode installation and removal can be done in just a few seconds and no tools are needed.

Built into the electrode's body is a sealed, gel-filled double junction reference design. This design provides an extra barrier against reference side contamination. Also, it allows the electrode to be used in applications where sulfides, mercaptans, heavy metal ions and similar materials are present.

In the center of the measuring surface is the pH-responsive flat glass surface. This surface is surrounded by the flat porous plastic reference junction. The large area of this porous junction has thousands of pores that provide excellent sample contact.

The junction is enclosed by the electrode body. At the top of the electrode body is the quarter-turn, quick disconnect BNC connector, and the leak-tight O-ring seals. All replacement electrodes are supplied complete with O-rings.