The article is published in the Flow Control Network magazine and discusses magnetic flowmeters. The article discusses the pros and cons of different types of magnetic flowmeters. A description and comparison of the main features of pulsed DC, continuous AC and pulsed AC magnetic flowmeters is presented. To counteract the disadvantages of continuous AC magmeters, while retaining some of the advantages of pulsed DC meters, some suppliers have introduced pulsed AC magnetic flowmeters. The article deals briefly with the operation of the magnetic flowmeter and its advantages. It traces the evolution of the magnetic flowmeter and the technological innovation that improves its performance.