Amprobe AC5500 Halogen Leak Detector is a portable device designed to detect leaks in refrigerant systems, as well as other gases containing Chlorine, Fluorine, and Bromine. It features an automatic ambient control that adjusts to the surrounding environment, ensuring accurate leak detection even in contaminated atmospheres. The AC5500 utilizes a high-efficiency pump to draw in samples, providing enhanced sensitivity and a fast response time.