Resonix™ Refrigerant Leak Sensor – RGD Series with IRDS
Sensata Technologies’ Resonix™ RGD Series with IRDS (Integrated Refrigerant Detection System) delivers a next-generation solution for A2L refrigerant leak detection by combining advanced sensing technology with simplified system integration for modern HVAC/R applications. The system leverages Sensata’s patented Speed of Sound technology to provide highly accurate and stable refrigerant detection even in demanding operating environments, but also incorporates a built-in relay output.
The RGD Series with IRDS is engineered as a compact unit that simplifies system design and reduces integration complexity. With built-in dual relay and Modbus RS485 outputs, it provides multiple integration pathways within a single device. Its multi-refrigerant configurability allows OEMs to standardize designs across platforms using different A2L refrigerants, supporting scalable system development.
The system is designed for long-term reliability and consistent performance in real-world conditions. It features temperature and humidity compensation that help maintain accuracy across varying environmental conditions and a robust construction that ensures dependable operation. Built to meet safety standards such as UL60335-2-40 and UL60335-2-89, the RGD Series with IRDS supports compliance requirements for A2L refrigerant systems, giving OEMs a reliable foundation for safe and efficient leak detection.
Features
- Fastest response time: T28 of 2.5s, T60 of 5s (average)
- Low power consumption: <40mA max
- Industry-leading lifetime: >15 years
- Operating temperature range: -40°C to 85°C
- Short warm-up time: <5 seconds
- No calibration or re-zeroing required over lifetime
- Operating humidity: 0 to 100%RH (condensing)
- IP54
- Immune to poisoning
- No false alarms due to fouling gases
- Industry-leading response and start-up time
- Compliant to UL60335-2-40 and UL60335-2-89
- Refrigerant compatibility: R32, R454A/B/C, R455A
Applications
- Residential and commercial air conditioning
- Heat Pumps
- Refrigeration equipment
Click here for a datasheet.
Click here for a flyer.
Click here for an HVAC/R system application note.












