Liquid Soap Level Detection

In applications where the liquid level needs to be monitored, a versatile sensor is needed. For car wash application, continuously monitoring the level of liquid soap in a reservoir can prevent customers from an unsatisfactory experience.


The WORLD-BEAM QS18U ultrasonic sensor monitors the level of soap in a tank in a car wash. The sensor is mounted atop the reservoir, aiming through the transparent top. The sound waves bounce off the surface of the liquid, which allows it to accurately sense regardless of the color or shape of the liquid.

WORLD-BEAM QS18 Ultrasonic Sensors

Low-cost ultrasonic sensor in popular WORLD-BEAM housing

Learn more »

Banner Insider eNewsletter

Helpful application information, new product updates, answers to frequently asked questions, and more.

Subscribe Now »

Worldwide Distributors

Banner has more than 3,000 distributors—ready to help you. Enter your U.S. city or zip.

02139 [change]

Find international distributors