| Description Spare electrode with 2 m cable (platinum cathode/lead anode) | Cat. No. 09809601 |
| Description Spare electrode with 10 m cable (platinum cathode/lead anode) | Cat. No. 09809600 |
| Description Spare electrode with 30 m cable (platinum cathode/lead anode) | Cat. No. 09809599 |
| Description Service Set for oxygen sensor incl. 3 spare membranes and 100 ml electrolyte solution (KOH) | Cat. No. 09809598 |
| Description Protection Cap for Oxygen Sensor, PVC | Cat. No. 11403756 |
| Description Calibration bottle for Oxygen Sensor | Cat. No. 11403754 |