The Sensata ResonixTM RGD sensor provides accurate leak detection for HVAC systems leveraging A2L refrigerants - delivering a solution with a 15+ year lifetime. This factory-set sensor designed specifically for UL60335-2-40 delivers fast response times and low power consumption, requires no re-zeroing or field calibration, and is targeted for R32, R454A, R454B, R454C, and R455 refrigerants.