Oxygen Sensor OxyGuard Ocean D.O. Probe Back Catalog number: 450536 Availability: In the manufacturer's stock Price on request - + Recommended 443590-001 Spare Rope for Visibility Disc acc. to Secchi Price on request 439016 Pressure Sensor max. depth 3.000metres (or to be Price on request 438116-OUT Electronic Flow Meter for MultiNet Price on request