
CTDs for Argo floats: Low power, salinity to the surface.
To assist with the international Argo program, we developed the RBRargo³ C.T.D for profiling floats. Salinity to the surface is default behaviour and a full range of additional sensors are available including optical DO, pH, PAR, fluorometers, and others.
Our RBRargo³ C.T.D has been integrated and tested on most commercial profiling floats.
Available on Argo floats from leading manufacturers
RBRargo³ C.T.D | Multi-channel instrument for profiling floats

Features
- Rated to 2000dbar (higher depth ratings available)
- WOCE accuracy
- 2000dbar profile consumes only 400J
- Accurate conductivity to within 10cm of the air-ocean interface
- Flushing by design – no pump required
- Up to 8Hz sampling
- Streamlined design minimizes salinity spiking
Available sensors:
dissolved oxygen, fluorescence, PAR, pH, turbidity, and voltage
RBRargo³ C.T.D|deep | Multi-channel instrument for deep profiling floats

Features
- Rated up to 6000dbar
- WOCE accuracy
- Ultra-low power consumption
- Accurate conductivity to within 10cm of the air-ocean interface
- Flushing by design – no pump required
- Up to 8Hz sampling
- Streamlined design minimizes salinity spiking
Available sensors:
dissolved oxygen, fluorescence, PAR, pH, turbidity, and voltage