Radar Sensors vs. Submersible Pressure Transducers for Level Measurement

Hi, I’m Carlos from Automation Products Group. My main responsibility at APG is helping our customers with their level measurement needs. A common question we get is whether a radar level sensor or a submersible pressure transducer is the better choice. While both are great options, the answer really depends on the application. Here we have a radar level sensor.

Radar is non-contact, which means it never comes into contact with the process media. It works by sending a signal from the radar down to the top of the liquid and then measuring the time it takes for the signal to return to the sensor. Because the sensor stays out of the liquid, radar is a great choice for environments with corrosive chemicals or applications where foam, steam, or vapor are present in the tank.

A submersible pressure transducer works a little differently. These sensors are typically placed at the bottom of a tank and measure the hydrostatic pressure created by the liquid above them. They are easy to install, extremely rugged, and designed to remain fully submerged in clean or dirty liquids. While both sensors effectively measure liquid level, they use different technologies and both provide reliable and accurate performance.

At APG, we design and manufacture sensors using innovative technologies to address your level measurement needs. Give us a call, and we’ll help determine which level measurement solution works best for you.