Flat Surface ORP Electrode, pH Electrode, Testing Parameter pH, Measurement Range 0 - 14 pH, pH Range 0 - 14 pH, Tip Shape Flat, Operating Temp. Range 0 Degrees to 80 Degrees C, Body Material CPVC, Diameter 22.86 mm, Length 76.2 mm, Connector BNR, Amplifier Can be used with PHAMP-1, For Use With S653/25/BNC Cable Assy, Shelf Life 6 mo, Reference Ag/AgCl, Junction Double, Electrolyte High Temperature, Recommended Use Dirty applications, Industrial, Wastewater, Manufacturers Warranty Length 12 mo