Ultrasonic and Radar Level Sensors: Complementary, Not Competitive Technologies

Ultrasonic and radar level sensing technologies are usually described as competitors, pitted against each other, in a struggle for level-sensing supremacy. “Ultrasonic is better!” “Radar is the best!” The truth is that they are far more complementary than they are competitive, with each excelling in different situations. Anybody pitching either technology as a One-Tech-Fits-All level measurement solution isn’t telling the whole truth about the technologies and their products.

The Basics of Float Switches

A float switch is a type of contact liquid level sensor that uses a float to operate a switch. Float switches are commonly used to control other devices such as alarms and pumps when a liquid level rises or falls to a specific point. While there are some mechanical float switches (similar to the float in a toilet tank that turns off the incoming water when the tank is “full”), this article will focus on electrical float switches, floats that are used to open and close (i.e., turn off and on) electrical circuits.

The Difference Between Ultrasonic and Radar Level Sensors

There is a tendency to pit ultrasonic level sensors and radar level sensors against one another when in reality each sensor has advantages and disadvantages that give each sensor its own place. In this blog, we will look at the differences in how these two technologies work and will cover the applications each sensor is best suited for.

The APG Float Switch Advantage

The APG Vertical Float Switch Advantage

While APG’s Stainless Steel Float Switches might look like your average float switch at first glance, the truth is they are far from being JUST another float switch. APG’s Stainless Steel Float Switches have unparalleled repeatability in actuation and 100% repeatability of float position. To achieve this, APG’s Stainless Steel Horizontal Float Switches and Vertical Float Switches are expertly engineered, from the electrical components to the stainless steel shell, providing greater accuracy and a longer sensor life span that is simply not found in other float switches on the market.