Leak Detector, Refrigerant, 0.1 oz/yr, For Use With All Existing Refrigerants and Blends Including 404A, 410A and R-507 (AZ50), Voltage 2 C Alkaline Batteries, Includes 16 in Gooseneck Handle, 2 C-Cell Batteries, Adjustable Tic Rate, AIT Microtip...