Electronic Sensors, Inc.

Electronic Sensors, Inc. (“ESI”) is today one of America’s leading bulk fluid instrument manufacturers and data services, providing tank monitoring systems with monitoring instruments and data service for most types of bulk fluid tanks — over 10,000 tanks in the U.S. and abroad.


Founded in 1984, Electronic Sensors, Inc. was founded as a technology-based manufacturer of continuous liquid level monitoring and control instrumentation. Electronic Sensors, Inc. built its foundation by providing a convenient, low-cost method of level gauging to the agricultural industry to monitor the level of liquid fertilizer. Seeing a need for ultrasonic gauging in other industries, the line was expanded to satisfy a wide range of liquid level gauging applications.


Electronic Sensors offers a focused selection of products and services. Whether your application requires a single instrument to integrate into an existing system or a completely new system, Electronic Sensors has the right products for you.  From single tank to multi tank on location or remote management, ESI can help your business reduce running costs, improve efficiency and safety.

Level Devil

Electronic Sensors manufactures the Level Devil product line.  The line includes digital ultrasonic sensors, 4-20mA ultrasonic sensors, static pressure transmitters, differential pressure transmitters, electromagnetic sensors, radar units, single tank controllers, multi-tank controllers, batch controllers, and intrinsically safe systems just to name a few.

Service & Management

Electronic Sensors services include everything from technical service to inventory management. Technical service and customer service departments are available Monday-Friday during normal business hours (8AM-5PM CST) to provide assistance with any questions or problems that may arise.

Our applications engineering department performs a complete overview of each storage vessel to determine chemical compatibility, equipment longevity, price, and all other necessary factors to ensure the products sold are appropriate for the application in question.

An inventory management service is available in which level data is gathered daily by Electronic Sensors inventory department and reports are faxed to the necessary parties.

If the current product line is incapable of solving your application, Electronic Sensors staffs full-time applications and custom engineering departments to solve those difficult applications.

Why Level Devil?