Rod Held Current Meter RHCM Back Catalog number: 445515 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 439015 Analog Channel incl. calibration for AMT oxygen an Price on request 438115 Mechanical Flow Meter with back-run stop Price on request 443590-001 Spare Rope for Visibility Disc acc. to Secchi Price on request