This document is a handbook about magnetic flowmeters produced by Yokogawa Electric Corporation. It discusses Yokogawa's magnetic flowmeter product called ADMAG, which can accurately measure volumetric and mass flow of various liquid and gas fluids. The handbook provides information on the properties of fluids that ADMAG is suited for measuring, including conductive and non-conductive liquids, liquids with high or low viscosity, and gases. It also lists the key features and advantages of ADMAG magnetic flowmeters such as high measurement accuracy, operation without auxiliary energy, and measurement under high process temperatures and pressures.