"Aanderaa RCM 9/11 Recording Current Meter"@en . . "SDN:L22::TOOL0029" . "The RCM 9/11 a family of single-point doppler recording current meter with a different casing options to allow working at depths of up to 300 (RCM 9 LW), 2000 (RCM 9 IW) or 6000 (RCM 11) metres. Further information may be found on the BODC document server at URL http://www.bodc.ac.uk/data/documents/nodb/106028/"@en . .