The Pro-Alert features dual-sensitivity controls; a high-sensitivity setting when initially checking the general leak area, and a low-sensitivity setting to hone in on the exact leak site. It is self-calibrating to neutralize background contamination, sensitive to both R-12 and R-134a refrigerants, and certified to meet SAE J1627.
The cordless, compact Pro-Alert is designed to make leak detection efficient and easy. Once turned on, it is instantly ready for inspection. Its 17 in (43 cm) long, chrome-plated, flexible metal probe gets into tight spots and holds its position for more thorough inspection. It includes a powerful, built-in positive displacement pump that draws a test sample into the detector for fast, accurate sensing.
The Pro-Alert is powered by two D-cell alkaline batteries (included), and comes packed in a rugged plastic carrying case.
More info: www.tracerline.com