The Matco Tools Diagnostic Leak Detector, No. KI95-0014B, offers full featured diagnostic capabilities with no need for nitrogen or UV dye. The detector includes a compound gauge to test cars with natural vacuum as well as pressure decay leak down tests. It is simple to use with one button and one knob, and is capable of testing up to 0.0010 leaks. The detector works with a shop 12V battery and uses mineral oil. It includes a complete accessory kit with a plastic carrying case.