In recent years, the debate about which technology is best suited for level monitoring and open channel monitoring (OCM) applications has taken some traction. There are those who argue that ultrasonic level technology has been uncontested as the standard for level and OCM applications in the water industry. The counter-argument is that radar technology is more effective because it is more robust and accurate than ultrasonic technology. This is because electromagnetic waves are not affected by temperature changes and radar technology is virtually unaffected by volatiles or foam. Moreover, radar transmitters can handle higher temperatures than ultrasonic level instruments. In recent years, radar level transmitters have become easier to setup, and higher accuracies are now being achieved with newer designs.