Honeywell Analytics S301-IRF-R134A Gas Sensor

The Honeywell Analytics S301-IRF-R134A Gas Sensor is a professional-grade infrared refrigerant gas detector specifically engineered for high-accuracy monitoring of R134a levels in demanding mechanical room environments. As the direct updated version for the 301-IRFS-R134A, M-505415, and VA301IRFSR134A, this unit integrates seamlessly with the Honeywell 301EM-20 Series controller to form a code-compliant leak detection system. Utilizing advanced infrared sensing technology, it provides a stable 0–1000 ppm measurement range with a 1 ppm resolution, ensuring precise detection where traditional electrochemical sensors might fail due to cross-sensitivity or poisoning. Its low-profile ABS-Polycarbonate housing is designed for "at the source" mounting low on walls or directly to chiller pads, facilitating early notification of leaks to maintain ASHRAE 15 and B-52 safety standard compliance. This 12 VDC powered sensor offers reliable performance in temperatures ranging from 32°F to 100°F, making it an essential component for commercial refrigeration and industrial chiller plant safety.

• Advanced Infrared Precision: Uses IR absorption technology to eliminate false alarms caused by non-target gases, providing high selectivity for R134a refrigerant gas.
• Direct Replacement Logic: Engineered as the compatible successor to legacy 301IRFS series sensors, simplifying modernizations of existing 301EM gas monitoring systems.
• Rugged Installation: Features a resilient NEMA 1 rated enclosure specifically shaped for low-level mounting near potential leak points on chillers.
• Regulatory Alignment: Helps facilities meet mandatory refrigerant leak detection requirements for mechanical rooms and cold storage.
• Low Maintenance Design: The S301-IRF-R134A requires significantly less frequent calibration than standard sensors, reducing long-term service costs for contractors.

• Is this sensor compatible with my existing 301EM controller? Yes, the S301-IRF-R134A is designed to communicate directly with the Honeywell 301EM-20 expansion modules and 301C controllers.
• What is the typical response time? This sensor features a T90 response time of approximately 60 seconds, ensuring rapid alerting during a critical leak event.
• Where should this sensor be mounted for R134a? Since R134a is heavier than air, this sensor should be mounted 12 to 18 inches above the floor or directly on the chiller pad for the most effective detection.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.