Refrigerant Infrared Gas Sensor – Dynament Axiom Series

Refrigerant IR Sensors

Key features

  • Refrigerant gas sensors for R32, R454B, R454C, R290, and R744
  • Measures refrigerant gases in the LFL range with a resolution of 0.05% (500ppm)
  • Designed to meet the requirements of UL60335-2-40 Edition 4 and IEC60335-2-40 Edition 7
  • Fail-safe operation
  • Immune to poisoning
  • 10+ year lifetime
  • 10+ year calibration interval
  • RS485 Modbus output
  • User-defined alarm and fault output
  • USB-C connector [rated IP68] allows for off-the shelf cabling options
  • Onboard heater and software algorithm to prevent the impact of condensation
  • Enhanced EMC protection
  • Plug-and-Play functionality. Each sensor contains all the necessary optics, electronics, and firmware to provide a linearized, temperature-compensated output.
  • Successfully passed all performance tests conducted in an independent study by AHRTI with full results available through the published report, Refrigerant Detector Characteristics for Use in HVACR Equipment, March 2020


PST gas sensors are designed with patented nondispersive infrared technology for the detection and measurement of the presence of refrigerant gases. To meet the growing need for lower global warming potential (GWP) refrigerant gases, Dynament offers sensors for both flammable (A3, A2, A2L) and non-flammable (A1) refrigerants. The Dynament Platinum NDIR sensor has a twenty-year history of meeting and exceeding gas detection needs in the most challenging of environmental applications. The Axiom series platform provides a linearized, high-resolution measurement of refrigerant gases over the lower explosive limit range.

Sensor ranges:

  • R32 0-15% volume
  • R454B 0-12% volume
  • R454C 0-15% volume
  • R290 0-2% volume
  • R744 0-5% volume
  • R744 0-500 ppm
  • Resources

    Come and meet us.

    Contact us or Request a Quote