R-32 & R-454B A2L Refrigerant Detection System Breadcrumb Home / Products / Parts / Refrigeration Components / A2L Dissipation Loading... Mfg Part #: ICM-UA2L-24C-DUAL Frequency: 50/60 Hz Harness: 6ft Dimensions (In.): 2.75 x 4 Voltage: 24 VAC, 50/60 Hz Input