The LotFancy Freon Leak Detector is designed to identify halogen refrigerants used in HVAC systems efficiently. It features a highly sensitive sensor capable of detecting leaks as small as 0.21 ounces per year. This versatile device can detect a wide range of refrigerants, including CFCs like R11, R12, R13, and others, as well as HCFCs such as R22 and HFCs including R134a and R410A. It can also identify various blends like AZ-50. The detector allows for seven adjustable sensitivity settings, ensuring optimal performance for varying situations.

Its flexible, 7.9-inch probe easily reaches tight spots and difficult-to-access areas, making it user-friendly for both professionals and DIYers. Featuring a precise ultra-low power integrated circuit design, the detector provides stability and reliability. Users will appreciate the tricolor display that indicates battery voltage, as well as the audible siren and flashing light that signal a leak. To operate, simply insert four AAA alkaline batteries, and this handy tool is ready for immediate use, making it a must-have for anyone dealing with refrigerant systems.