Polarographic Oxygen Electrode

A traditional polarographic (Clark style) oxygen electrode for chemical or biological applications. The electrode must be attached to an oxygen meter/preamplifier that polarises the platinum cathode to about -0.8 V with respect to the anode while measuring the current flow. Supplied with magnetic stirbar and spare membrane.


  • Typical signal: 400 ± 75 nA in air saturated water at 25°C
  • Response time: 0 – 98% of full response in less than 60 s at 25°C
  • Cathode: Platinum
  • Anode: Silver
  • Body: ABS plastic, 12 mm dia x 120 mm long
  • Connector: BNC, cable 1m