Standard Style Fermprobe Ph Electrodes Are Designed To Be Used In Bioprocess Applications Where Cip/Sip Procedures Are Used. Built To Withstand Repeated Steam Sterilization Cycles, The Fermprobe Quickly Stabilizes After Steam Exposure To Be Back On-Line In Half The Time Of Other Electrodes. This Rugged, Low Impedance, Process Ph Electrode Continues To Provide Fast And Precise Ph Measurements Even After Harsh Use And Prolonged Steam Exposure. Specifications 0 - 13 Ph Range; Steam Sterilizable To 135� C; 150 Psig Max. Pressure; Double Junction, Ag-Agcl Reference System; Electrode Secures To Housing With Threaded Retainer Nut