Alemite 3530-B electronic grease in-line meter measures the flow of lubricant at a flow rate ranging from 0.4 lb./min to 11 lb./min (0.18 to 5 kg/min) at a maximum operating pressure of 10,000 psi. The unit of measure is ounces and pounds. It is totally electronic except for the metering mechanism - the electronic register is powered by two 1-1/2 Volt size N alkaline batteries. A liquid-crystal display shows the amount of lubricant that has currently been delivered (in ounces) along with a resettable total and a non-resettable total (in pounds), and is compatible with any grease gun or pump system that uses a 1/4" NPTF coupler. This electronic grease meter has an operating temperature range from 14 to 140 degrees F (-10 to +60 degrees C), has a 1/4" NPTF (f) inlet and outlet and weighs 1.2 lb. The meter integrates with grease guns and grease pump systems to inject grease into standard grease fittings and is used for applications such as lubricating motor vehicles, construction and industrial equipment, and aeronautics. The Alemite Electronic Grease Meter works with virtually any type of grease dispensing valve or grease gun. This in-line meter provides accurate and reliable grease delivery, optimizing lubrication consumption while ensuring components receive appropriate lubrication. Alemite Control Valves and Meters offer consistent, reliable and accurate dispensing of fluids. Each item offers a proven, ergonomic design for simple and comfortable use.