Add to Wishlist Robinair LD3 Economy Refrigerant Leak Detector Robinar LD3 Economy Refrigerant Leak Detector The Robinair LD3 Economy Refrigerant Leak Detector is an entry-level leak detector that is compatible with most commonly used refrigerants today including R-1234yf and R-134a The LD3 uses an audible alarm to... MSRP: $289.00