The Robinair Infrared Refrigerant Leak Detector, No. 22791, meets the SAE J2913 standard for R-123yf refrigerants and SAE J2791 standard for R-134a refrigerants. Using an advanced infrared sensor that is designed to last at least 10 years, the device automatically re-calibrates in contaminated areas to help pinpoint the exact location of a leak. The leak detector has three sensitivity levels down to 0.15 oz per year and won't trigger on oil or moisture. It senses CFC, HFC, HCFC blends and HFO-1234yf refrigerants and utilizes and eight-hour Li-ion battery. The tool has a magnetic hanger and a carrying case to store the leak detector and accessories.