In today's accelerating transition towards "environmental sustainability" and "long termism", a problem has become increasingly prominent: when the use of many common refrigerants has been restricted in recent years, and new environmentally friendly refrigerants such as R32 and R290 have become mainstream, how to make "safety" a moat for brand differentiation competition while meeting global regulations?

　　•Beyond Compliance: Anchoring Low GWP, Escorting Global Green Pathways

Since the signing of the Montreal Protocol in 1987, the global HVAC industry has accelerated the upgrading of refrigerant environmental protection, with zero ODP and low GWP becoming clear trends. The application of new refrigerants such as R32, R454A, R454B, R290 is becoming increasingly widespread. The use of environmentally friendly refrigerants is an important path for China's room air conditioning industry to achieve the "dual carbon" goal, but its combustible, toxic and other safety risks also pose a transformation challenge, and preventing leaks has become the key. Sifang Optoelectronics NDIR refrigerant leakage sensor provides reliable guarantee for the safe and green transformation of the industry, helping enterprises cope with regulatory requirements and achieve low-carbon development.

　　•Security based: NDIR technology core+"anticipatory" protection

The application of environmentally friendly new refrigerants has become a trend. Low GWP refrigerants represented by R32 and R290 have good environmental performance, but pose potential safety risks due to their inherent flammability and toxicity. For air conditioning products, the risk of combustion or poisoning caused by refrigerant leakage is always the primary safety concern for users, and it is also the quality bottom line that HVAC manufacturers cannot exceed.

The Sifang Optoelectronic NDIR refrigerant monitoring sensor adopts dual beam infrared NDIR technology, and the detector has excellent consistency, surpassing the limitations of thermal conductivity technology and significantly different from traditional non dispersive infrared technology. It focuses more on the measurement of target refrigerant (specific gas), can sensitively capture its subtle concentration changes, and convert them into accurate signals.

　　Beyond standard response:The response time is as fast as 20 seconds, far exceeding UL regulatory requirements, which means that earlier and more reliable alarms can be issued before the refrigerant concentration approaches the lower explosive limit (LEL)

　　Ppm level sensitivity:Capture subtle risks with high detection accuracy covering 0%~25% LEL range

　　•Stability is king: Monitoring of refrigerants with a long lifespan of 15 years

As a household appliance that operates "24/7", air conditioning components must withstand the triple test of "regional temperature difference, environmental humidity, and long-term operation". The adaptability and anti-interference of the Four party Optoelectronic NDIR refrigerant leakage monitoring sensor in all scenarios achieve high-precision and highly reliable detection across the entire range, avoiding frequent false alarms and causing inconvenience to end users.

　　A2L/A3 refrigerant full coverage

　　Wide temperature range adaptability beyond industry standard working conditions, with a working temperature range of -40 ℃~95 ℃ covering global climate zones and various harsh environments

　　IP54 dustproof and waterproof performance, not affected by dust, sufficient to cope with adverse environments such as high temperature and humidity in kitchens, bathrooms, etc

Over 100000 hours of operation record, equivalent to "zero maintenance" throughout the entire lifecycle of an air conditioner from installation to disposal, effectively reducing after-sales costs.

　　International certification forges a global passport

The technical strength of NDIR refrigerant leakage monitoring sensor AM4205 has been certified by international organizations, building a solid "firewall" for global products of air conditioning manufacturers.

As a refrigerant monitoring sensor manufacturer certified to the stringent UL60335-2-40 standard (the first of its kind in the Asia Pacific region), and also certified to the IEC international standard, our dual certification system ensures that our products meet high safety standards, greatly reducing the international compliance costs and risks for air conditioning manufacturers. It is the preferred technological guarantee for the refrigeration industry to embrace environmentally friendly refrigerants and achieve safety upgrades.

Sifang Optoelectronics enables HVAC manufacturers to cross the regulatory threshold of the global market, empower product competitiveness, and quickly complete solution docking in the ever-changing market, ultimately reflected in "product strength" - we believe this is also the underlying logic that top brands maintain in the industry reshuffle.