This kit includes the 55900 Intella Sense II Refrigerant Leak Detector with 2 “C” batteries, leak test vial and replacement filters and the 89661-AYF R1234yf/R134a Aluminum Manifold Gauge Set with 2 1/2” gauges, 3-60” R134a standard hoses, R134a manual couplers (82834, 82934), R1234yf couplers (83834, 83934), 1/2” acme-m x 1/2” acme-f LH thread adapter (83633), (2) 12 mm-m x 14 mm-f R1234yf adapters (83735)