A2L Gas Refrigerant Sensor

Technology: Sensing

Product Category: Gas Sensors

Application: HVAC, Refrigeration

Brand: Therm-O-Disc

Reliable A2L Refrigerant sensor with Micro-Machined Membrane (MMM) Technology partnered with NevadaNano Technology that is UL 60335-2-40 Compliant, immune to poisoning, can withstand humid environments up to 100% condensing RH, detect <10 seconds to 25% LFL Level and have 15 years lifetime.

  • Refrigerant

  • Operating Environment
  • *Operating Temperature
  • Thermal Response (Sec.)
  • Agency Compliance
  • Storage Temperature
  • *Operating Humidity Ranges
  • *Operating Pressure Ranges
  • Measurement Range
  • Resolution
  • Response Time
  • Lifetime
  • Communication Interface
  • R-32, R-454 Blends
  • Humid
  • -40°C to 80°C (-40°F to 176°F)
  • <10 to 25% LFL Level
  • UL 60335-2-40 Annex LL
  • -40 to 85°C (unpowered)
  • 0-100% RH Condensing
  • 65 to 110kPa
  • 0-100% LFL
  • 0.1% LFL
  • <10 seconds to 100% LFL step change
  • 15+ years with no calibration required
  • RS-485 Modbus RTU
    Digital serial UART (3.3V or SV)
    Analog (0-3.3V)

*Not required by the UL standard; therefore not evaluated by UL.

  • Enables hydrofluorocarbon (HFC) phasedown using A2L refrigerants less than 750 GWP.
  • Uses Micro-Machined Membrane (MMM) technology.
  • Sensors can be calibrated for R-32 and R-454 blends.
  • Meets all AHRTI testing requirements including vibration testing, and is proven to be best-in-class.
  • Immune to poisoning: Insensitive to poisoning from chemicals listed in UL-60335-2-40 Annex LL.
  • No calibration / maintenance: No false alarms due to ambient conditions with the built-in environmental sensor for temperature, humidity, and pressure.
  • Resistant to condensing environments
  • Long life span: 15+ years

Agency Ratings

(consult catalog for details)

  • Catalog
    A2L Gas Sensor Brochure - Chinese
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  • Catalog
    A2L Gas Sensor - Japanese
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  • Catalog
    A2L Gas Sensor - Korean
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  • Catalog
    A2L Gas Sensor Brochure - English
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