This product is no longer available and has been replaced by: CS456. Some accessories, replacement parts, or services may still be available.
CS420-L Druck PDCR 1830-8388 Submersible Pressure Transducer


The CS420 was manufactured by Druck for use in surface, groundwater, or hostile fluid applications. It was quite similar to the CS425 (retired also), but offered increased static accuracy. The sensor's accuracy was ±0.1% FS, BSL (combined non-linearity, hysteresis, and repeatability). The CS420 featured a titanium body with an isolated diaphragm and NEMA6 (IP68) ingress protection to 2300 feet of water.

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The "-L" on a product model indicates that the cable length is specified at the time of order.


Detailed Description

The CS420 was removed from our pricing system on December 5, 2008.


Output Voltage
  • 25 mV for 1 psig range
  • 50 mV for 2.5 and 5 psig ranges
  • 100 mV for ranges 10 psig and above
Operating Temperature Range -2° to +30°C (compensated)
Diameter 2.0 cm (0.8 in.)
Length 10.2 cm (4.0 in.)
Weight 1.36 kg (3 lb)


Datalogger Considerations

Excitation voltage from the datalogger and either one (four-wire gages) or two (six-wire gages) differential channels are required. Four wires can be used where cable lengths are short; six wires compensate for excitation voltage loss on long cables, thereby improving accuracy.

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR9000 CR5000 CR7X

PST System

The CS420 is NOT compatible with the PST system. [Underwater connectors for vented transducers are available. Contact Druck for pricing and details.]