Refrigerant leak detectors for heating diodes are becoming the most common type of detector in the field. Of course, there are other models, such as corona suppression and infrared, but most of the tools are heating diodes.
Contractors have an opportunity to check the cooling system for refrigerant leaks. Some of these options have been in development for years. The bubble method paved the way for dye kits and electronic hand-held HVAC refrigerant leak detectors.
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