CO233/A – Carbon Monoxide Gas Sensor with Display

Gas Detection

The CO233/A is a Carbon Monoxide (CO) gas sensor with IP65 protection. Works with Duomo (UK) GS and BX control units to detect the presence of Carbon Monoxide.

Product Details

  • Autosetting feature for calibration and Diagnosis
  • Preset to TWA and STEL Standards
  • 6 Colour Display for increased visibility
  • IP65 Protection
  • 4-20mA Industry Standard Output
  • Duomo GS or BX Control Unit Compatible
  • EN50270 & EN45544-1-3 Compliant

The CO233/A sensor is managed by a microprocessor. This supplies an alarm signal to the Control Unit connected to it. Furthermore it allows execution of autosetting which keeps maximum detection accuracy at any time.

This device is useful when both the maximum CO admissible concentration threshold set to 300ppm is exceeded, and when low CO concentrations persist in the environment for lengthy periods. According to the principle of accumulation, could also be toxic. The sensor has a 0-300ppm linear output conforming to the 4-20mA standard.



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We recommend Duomo Gas Detection products are serviced at least annually to ensure efficacy and extend sensor life. Our qualified team of engineers are available Nationwide.

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