Cathode: Platinum. Anode: Silver. Polarization: ~675mV. Output: 40 to 70nA in air at 25 degreesC. Temperature: 0 to 60 degreesC; Sterilization to 130 degreesC. Stability: 2% or Readout per week at constant pressure/temp 30 degreesC. Linearity: Better than ±0.3% of readout. Pressure: 60PSI maximum. Material: Wetted parts 316L SST. O-Ring: Viton