Rod Held Current Meter RHCM 270 Back Catalog number: 445500 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 450536 Oxygen Sensor OxyGuard Ocean D.O. Probe Price on request 438116-IN Electronic Flow Meter for MultiNet Price on request 443591 Visibility Disc acc. to Secchi, 3m steel rope, ma Price on request