This product is no longer available and has been replaced by: CS456,CS451.
CS408-L PressureSystems 500-Series SDI-12 Pressure Transducers
Services Available
Repair No
Calibration No
Free Support No


The CS408 was a pressure transducer with an SDI-12 output. The static accuracy of the CS408 was ±0.05% over a 0° to 50°C temperature range.

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Detailed Description

The CS408 had a choice of either a polyurethane or Tefzel cable. Both cables contained a vent tube so that the sensor head could reach equilibrium with atmospheric pressure. As the vent tube connected directly to the back side of the sensor's diaphragm, water vapor needed to be removed before entering the vent tube. Removing the water vapor helped protect the sensor head from mildew, corrosion, and rust. It also prevented formation of a liquid column in the vent tube which would directly affect the measurement.


Level Static Accuracy ±0.05% FS
Proof Pressure 1.5 x rated pressure
Burst Pressure 2.0 x rated pressure
Output SDI-12 digital interface standard
Cable Polyurethane-jacketed or Tefzel-jacketed
Operating Temperature Range -20° to +60°C
Transducer Diameter 2.5 cm (1.0 in.)
Transducer Length 11.4 cm (4.5 in.)
Weight 750 g (26 oz) with 7.62-m (25-ft) cable


Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

Product Compatible Note
21X (retired)
CR10 (retired)
CR1000 (retired)
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR3000 (retired)
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR800 (retired)
CR850 (retired)
CR9000 (retired)
CR9000X (retired)

Additional Compatibility Information

Data Logger Considerations

The CS408 output a digital SDI-12 signal to indicate observed pressure level; the SDI-12 signal was measured and recorded by the data logger.

Case Studies

Israel: Marine Meteorology on the Red Sea
The meteorological stations at the Interuniversity Institute for Marine Sciences at Eilat (IUI) in more

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