This is the rugged version of the traditional flat electrodes with an improved self-cleaning effect. Installation and maintenance are easy due to the quick disconnect BNC connectors. 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 and allows the electrodes to be used in severe applications prolonging electrode life. The pH-responsive flat glass surface is places in the center of the measuring surface and surrounded by the flat porous plastic reference junction providing an excellent sample contact. A wide range of installation accessories allows in line, submersion or hot tap installation.