"The Roughneck Digital Grease Control Valve is a pistol-grip dispenser valve that provides positive control of high-pressure lubricants. When supplied with air, the valve will start the pump with the pull of a trigger, then stop pumping when the valve trigger is released. Accessory Type Grease control valve, Handle Type Pistol grip, Includes Flexible spout, rigid tube, Length in. 10.23, Material Type Aluminum, Fitting Size in. 1/4, Storage Case Included No, Max. PSI 8,700, Pieces qty. 1, Dimensions L x W x H in. 10 1/4 x 9 1/16 x 2. Easy-to-read digital LCD display Precision accuracy to 2 Dispenses in oz., lbs. or g., kg. 8,700 PSI pressure range 1/4 in. NPT inlet connection Auto start with the pull of a trigger Powered by 2 AA batteries included Equipped with low battery indicator"