Analog Channel incl. calibration for AMT oxygen an Back Catalog number: 439015 Availability: In the manufacturer's stock Price on request - + Recommended 439016 Pressure Sensor max. depth 3.000metres (or to be Price on request 443591 Visibility Disc acc. to Secchi, 3m steel rope, ma Price on request 443590 Visibility Disc acc. to Secchi, 3m steel rope, ma Price on request