pH Electrode, 6x110mm, with BNC connectorpH Electrode,6x110mm, Epoxy Body, Single Junction, Sealed, with BNC connector This thin pH electrode can be used in small 5ml tubes to measure pH in embryo culture incubators. Cole Parmer high performance electrodes are available in a full range of materials, junctions, and sizes to suit your application requirements. New formulation provides additional stability and superior reproducibility over entire pH range. Features: Affordable, high accuracy pH