Pressure Sensor max. depth 3.000metres (or to be Back Catalog number: 439016 Availability: In the manufacturer's stock Price on request - + Recommended 439013 Conductivity Sensor type SST, max. depth 6.000met Price on request 443591 Visibility Disc acc. to Secchi, 3m steel rope, ma Price on request 438110 Mechanical Flow Meter Price on request